Feed processing production lines, whether imported or domestically produced, have the following characteristics:
1. The investment in fixed assets of the production line is large, the production scale is large, the consumption of raw materials is large, the labor productivity is high, and the value of production is large. It is a form of production organization with higher labor efficiency.
2. It is composed of many processing equipments, conveying equipments, electric appliances, and steam control elements, etc., in accordance with the needs of advanced processing technology, organically combined together, with a high degree of automation and close contact with each other; the equipment can be continuously operated in 3 shifts of 24 hours. If a device or a component fails, it will cause the entire line or a certain process section to stop production.
3. Although the operation on the production line is simple and there are few workers, the technical content of equipment management and maintenance is high and the workload is also large.
Therefore, to ensure that feed processing equipment is always in good condition, equipment management must be strengthened and equipment failures must be strictly controlled. In order to reduce the failure rate, reduce maintenance costs and extend the life of the purpose.
Equipment failure generally refers to an event or phenomenon in which a device or system loses or reduces its prescribed function during use. The equipment is equipped by the enterprise to meet the process requirements of a certain production object or to complete the design function of the project. The function of the equipment embodies its value in production activities and its guarantee of production. In modern feed production, due to the complex structure of the equipment and the high degree of automation, all parts and systems are in close contact with each other. Therefore, even if the equipment malfunctions, even if it is a partial failure, it will cause the entire equipment to stop and the whole production line will stop production. Equipment failures directly affect the quantity and quality of the company's products.
First, the classification of equipment failure Equipment failure is a wide variety, you can classify it from different perspectives.
1. According to the status of failure, it can be divided into:
(1) Fading failure. It is due to the gradual degradation of the initial parameters of the equipment. Most of the machine faults belong to this kind of failure. Such failures are closely related to the processes of wear, corrosion, fatigue, and creep of materials.
(2) sudden failure. It is a combination of various unfavorable factors and accidental external influences. This effect is beyond the limits that the equipment can withstand. For example: breakage of the safety pin due to the entry of iron into the pelletizer press chamber or the occurrence of an overload; breakage of the screen by hammer mill hammer breaking. Such failures often occur suddenly without any prior warning.
Sudden failure occurred in the initial stage of equipment use, often due to defects in design, manufacturing, assembly, and materials, or operation errors and illegal operations.
2. According to the nature of the fault, it can be divided into:
(1) Intermittent faults. The equipment will lose some of its functions in a short period of time and can be restored with minor repairs and adjustments. No replacement parts are required.
(2) Permanent failure. Some parts of the equipment are damaged and need to be replaced or repaired before they can be used again.
3. According to the degree of influence of the fault, can be divided into:
(1) Complete failure. Causes the device to completely lose functionality.
(2) Local malfunction. Loss of some of the functions of the device.
4. According to the causes of faults, they can be divided into:
(1) Abrasion failure. Failure due to normal wear and tear of the equipment.
(2) Misuse faults. Fault caused by incorrect operation and improper maintenance.
(3) inherent weaknesses. Due to design problems, the equipment is vulnerable to failures that occur during normal use.
5. According to the risk of failure, can be divided into:
(1) Dangerous failure. For example, a safety protection system loses its protective function due to a malfunction when it needs action, causing personal injury and machine tool failure; failure caused by failure of the brake system.
(2) Security failure. For example, the safety protection system will operate when no action is required; the machine tool will not start up.
6. According to the occurrence of failure, the development of the law can be divided into;
(1) Random failure. The time of failure is random.
(2) There is a rule failure. The occurrence of failure has a certain law.
Each type of fault has its main characteristics, the so-called failure mode, or fault conditions. The failure status of various equipment is quite complex, but can be summarized as follows: abnormal vibration, wear, fatigue, cracks, cracks, excessive deformation, corrosion, peeling, leakage, blockage, slackness, insulation aging, abnormal sound, Oil deterioration, material degradation, adhesion, contamination, and others. Different types of equipment have different rates of failure modes.
Second, the failure analysis and troubleshooting procedures In order to ensure the failure analysis and elimination of the fast and effective, must follow certain procedures, this program is roughly as follows.
The first step is to perform symptom analysis while keeping the scene
1. Ask the operator
1 What happened? Under what circumstances? When did it happen?
2 How long has the equipment been operated?
3 Is there any abnormality before the failure? What sound or sound and light alarm signal? Is there smoke or odor? Is there an error-free operation (note the way of asking)?
4 Is the control system operating normally? Is there a change in operating procedures? Is there any special difficulty or abnormality during operation?
5 Observe the condition of the whole machine and various operating parameters
6 Is there any obvious abnormality? Is there any block or damage to the parts? Is the pipeline loose or leaking? Is the cable (wire) broken, scratched, or burned?
7 What are the changes in the operating parameters of the equipment? Is there any obvious interference signal? Is there any obvious damage signal?
8 inspection monitoring indicator
9 Check that all readings are normal, including pressure gauges and other meter readings, and oil level.
10 Check if the filters, alarms and interlocks, printouts or monitors are normal.
11 Jogging equipment inspection (under permitted conditions)
Check for intermittent, persistent, fast-forward, or slow-moving conditions and see if these conditions affect the output and may cause damage or other hazards.
Step 2 Check the equipment (including parts, parts and lines)
1. Use sensory inspection (continue the process of further observation)
A look: whether there is any abnormality in the plug and socket, whether the motor or pump is operating normally, whether the control adjustment position is correct, whether there is trace of arcing or scorching, the filament of the electronic tube is not bright, whether the liquid leaks, and whether the lubricant path is unimpeded Wait.
Second touch: equipment vibration, the heat of the element, the temperature of the tubing, the state of the mechanical movement.
Three listen: whether or not abnormal sound.
Four sniffers: There is no burnt smell, leakage odor, and other odors.
Five investigations: changes in the shape and position of the workpiece, changes in equipment performance parameters, and abnormal circuit inspections.
2. Assess the inspection results to assess whether the fault diagnosis is correct, if the fault cues are found, and whether the inspection results are the same.
Determination of the third step fault location
1. Identify the structure of the system and determine the test method Refer to the device manual, identify the structure of the device, what method to test, what test methods are required, what test parameters or performance parameters may be obtained, under what operating conditions to test, must Which safety measures are to be followed and whether it is necessary to operate a permit.
2. System detection uses the most suitable technology detection for the system structure. At the appropriate test point, the suspicious position is found by comparing the results of input and feedback with normal values ​​or performance criteria.
Step 4 Repair or Replacement
1. Repair Find the cause of the malfunction, repair the equipment and take preventive measures; check the relevant parts to prevent the failure from spreading.
2. Replace the correct assembly and commissioning replacement parts, and pay attention to the relevant parts. Replaced parts are repaired or scrapped.
Step 5 Performance Measurement
1. Start the equipment and start the equipment after assembly and debugging. Manually (or jog it) first, and then carry out no-load and load measurement.
2. Adjust the load change speed from low to high, load from small to large, and measure the performance according to the specified standards.
3. Extend the range of performance tests As needed, gradually expand the range of performance tests from the local to the system. Pay attention to system operating conditions in non-faulty areas. If the performance meets the requirements, it is delivered for use. If it does not meet the requirements, the fault location is re-determined.
Step 6 Record and Feedback
1. Gather valuable data and data, such as the time of failure, failure phenomenon, downtime, repair work hours, repair parts, repair results, problems to be solved, settlement fees, etc., and deposit files according to the requirements.
2. Statistical analysis Regularly analyze equipment usage records, analyze downtime losses, revise memorandum catalogs, find key measures to reduce maintenance operations, study fault mechanisms, and propose improvements.
3. According to the procedure, the relevant faults are reported to the competent authority and fed back to the equipment manufacturer.
1. The investment in fixed assets of the production line is large, the production scale is large, the consumption of raw materials is large, the labor productivity is high, and the value of production is large. It is a form of production organization with higher labor efficiency.
2. It is composed of many processing equipments, conveying equipments, electric appliances, and steam control elements, etc., in accordance with the needs of advanced processing technology, organically combined together, with a high degree of automation and close contact with each other; the equipment can be continuously operated in 3 shifts of 24 hours. If a device or a component fails, it will cause the entire line or a certain process section to stop production.
3. Although the operation on the production line is simple and there are few workers, the technical content of equipment management and maintenance is high and the workload is also large.
Therefore, to ensure that feed processing equipment is always in good condition, equipment management must be strengthened and equipment failures must be strictly controlled. In order to reduce the failure rate, reduce maintenance costs and extend the life of the purpose.
Equipment failure generally refers to an event or phenomenon in which a device or system loses or reduces its prescribed function during use. The equipment is equipped by the enterprise to meet the process requirements of a certain production object or to complete the design function of the project. The function of the equipment embodies its value in production activities and its guarantee of production. In modern feed production, due to the complex structure of the equipment and the high degree of automation, all parts and systems are in close contact with each other. Therefore, even if the equipment malfunctions, even if it is a partial failure, it will cause the entire equipment to stop and the whole production line will stop production. Equipment failures directly affect the quantity and quality of the company's products.
First, the classification of equipment failure Equipment failure is a wide variety, you can classify it from different perspectives.
1. According to the status of failure, it can be divided into:
(1) Fading failure. It is due to the gradual degradation of the initial parameters of the equipment. Most of the machine faults belong to this kind of failure. Such failures are closely related to the processes of wear, corrosion, fatigue, and creep of materials.
(2) sudden failure. It is a combination of various unfavorable factors and accidental external influences. This effect is beyond the limits that the equipment can withstand. For example: breakage of the safety pin due to the entry of iron into the pelletizer press chamber or the occurrence of an overload; breakage of the screen by hammer mill hammer breaking. Such failures often occur suddenly without any prior warning.
Sudden failure occurred in the initial stage of equipment use, often due to defects in design, manufacturing, assembly, and materials, or operation errors and illegal operations.
2. According to the nature of the fault, it can be divided into:
(1) Intermittent faults. The equipment will lose some of its functions in a short period of time and can be restored with minor repairs and adjustments. No replacement parts are required.
(2) Permanent failure. Some parts of the equipment are damaged and need to be replaced or repaired before they can be used again.
3. According to the degree of influence of the fault, can be divided into:
(1) Complete failure. Causes the device to completely lose functionality.
(2) Local malfunction. Loss of some of the functions of the device.
4. According to the causes of faults, they can be divided into:
(1) Abrasion failure. Failure due to normal wear and tear of the equipment.
(2) Misuse faults. Fault caused by incorrect operation and improper maintenance.
(3) inherent weaknesses. Due to design problems, the equipment is vulnerable to failures that occur during normal use.
5. According to the risk of failure, can be divided into:
(1) Dangerous failure. For example, a safety protection system loses its protective function due to a malfunction when it needs action, causing personal injury and machine tool failure; failure caused by failure of the brake system.
(2) Security failure. For example, the safety protection system will operate when no action is required; the machine tool will not start up.
6. According to the occurrence of failure, the development of the law can be divided into;
(1) Random failure. The time of failure is random.
(2) There is a rule failure. The occurrence of failure has a certain law.
Each type of fault has its main characteristics, the so-called failure mode, or fault conditions. The failure status of various equipment is quite complex, but can be summarized as follows: abnormal vibration, wear, fatigue, cracks, cracks, excessive deformation, corrosion, peeling, leakage, blockage, slackness, insulation aging, abnormal sound, Oil deterioration, material degradation, adhesion, contamination, and others. Different types of equipment have different rates of failure modes.
Second, the failure analysis and troubleshooting procedures In order to ensure the failure analysis and elimination of the fast and effective, must follow certain procedures, this program is roughly as follows.
The first step is to perform symptom analysis while keeping the scene
1. Ask the operator
1 What happened? Under what circumstances? When did it happen?
2 How long has the equipment been operated?
3 Is there any abnormality before the failure? What sound or sound and light alarm signal? Is there smoke or odor? Is there an error-free operation (note the way of asking)?
4 Is the control system operating normally? Is there a change in operating procedures? Is there any special difficulty or abnormality during operation?
5 Observe the condition of the whole machine and various operating parameters
6 Is there any obvious abnormality? Is there any block or damage to the parts? Is the pipeline loose or leaking? Is the cable (wire) broken, scratched, or burned?
7 What are the changes in the operating parameters of the equipment? Is there any obvious interference signal? Is there any obvious damage signal?
8 inspection monitoring indicator
9 Check that all readings are normal, including pressure gauges and other meter readings, and oil level.
10 Check if the filters, alarms and interlocks, printouts or monitors are normal.
11 Jogging equipment inspection (under permitted conditions)
Check for intermittent, persistent, fast-forward, or slow-moving conditions and see if these conditions affect the output and may cause damage or other hazards.
Step 2 Check the equipment (including parts, parts and lines)
1. Use sensory inspection (continue the process of further observation)
A look: whether there is any abnormality in the plug and socket, whether the motor or pump is operating normally, whether the control adjustment position is correct, whether there is trace of arcing or scorching, the filament of the electronic tube is not bright, whether the liquid leaks, and whether the lubricant path is unimpeded Wait.
Second touch: equipment vibration, the heat of the element, the temperature of the tubing, the state of the mechanical movement.
Three listen: whether or not abnormal sound.
Four sniffers: There is no burnt smell, leakage odor, and other odors.
Five investigations: changes in the shape and position of the workpiece, changes in equipment performance parameters, and abnormal circuit inspections.
2. Assess the inspection results to assess whether the fault diagnosis is correct, if the fault cues are found, and whether the inspection results are the same.
Determination of the third step fault location
1. Identify the structure of the system and determine the test method Refer to the device manual, identify the structure of the device, what method to test, what test methods are required, what test parameters or performance parameters may be obtained, under what operating conditions to test, must Which safety measures are to be followed and whether it is necessary to operate a permit.
2. System detection uses the most suitable technology detection for the system structure. At the appropriate test point, the suspicious position is found by comparing the results of input and feedback with normal values ​​or performance criteria.
Step 4 Repair or Replacement
1. Repair Find the cause of the malfunction, repair the equipment and take preventive measures; check the relevant parts to prevent the failure from spreading.
2. Replace the correct assembly and commissioning replacement parts, and pay attention to the relevant parts. Replaced parts are repaired or scrapped.
Step 5 Performance Measurement
1. Start the equipment and start the equipment after assembly and debugging. Manually (or jog it) first, and then carry out no-load and load measurement.
2. Adjust the load change speed from low to high, load from small to large, and measure the performance according to the specified standards.
3. Extend the range of performance tests As needed, gradually expand the range of performance tests from the local to the system. Pay attention to system operating conditions in non-faulty areas. If the performance meets the requirements, it is delivered for use. If it does not meet the requirements, the fault location is re-determined.
Step 6 Record and Feedback
1. Gather valuable data and data, such as the time of failure, failure phenomenon, downtime, repair work hours, repair parts, repair results, problems to be solved, settlement fees, etc., and deposit files according to the requirements.
2. Statistical analysis Regularly analyze equipment usage records, analyze downtime losses, revise memorandum catalogs, find key measures to reduce maintenance operations, study fault mechanisms, and propose improvements.
3. According to the procedure, the relevant faults are reported to the competent authority and fed back to the equipment manufacturer.
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2. Size: 180 - 230grains/kg, 230 - 260grains/kg, 260 - 350grains/kg
3. Packing: In carton
a) 500g*20bags
b) 1kg* 10bags
c) 5kg*2bags
d) 10kg*1bag
e) 30lbs/bag
f) 10kg/bag
g) 20lbs/bag
h) 30lbs/bag
i) 1lb 3lbs, 5lbs/jar (jars can be filled with nitrogen)
4. Supply period: All year round
5. Conveyance: 25mts/40' HR
Peeled Garlic
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