Chemical production safety monitoring method, device and equipment

Abstract

The present invention belongs to the field of chemical production technology, in particular to a chemical production safety monitoring method, device and equipment. Aiming at the problem that the existing raw material pre-detection link is lacking and the dust inside the device cannot be controlled, the following scheme is proposed, including a grinding box, wherein two crushing rollers are rotatably connected inside the grinding box, and the two crushing rollers are used to grind the raw materials together, a feed cover is fixed on the top of the grinding box, and the feed cover is connected to the grinding box, a feed port is provided on one side of the feed cover, and a conveyor belt is provided on the top of the grinding box. In the present invention, pre-detection can be carried out in time before the raw materials are ground, and the damp raw materials can be separated in time during the detection, so that the production quality of food additives is not affected by the damp raw materials, and the internal dust concentration and static electricity can be detected in real time during the grinding process, and the dust inside the device can be filtered, and the filtered air can also dry the damp raw materials.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical production, and in particular to a method, device and equipment for monitoring safety of chemical production. Background Art

[0002] The chemical industry, also known as the chemical processing industry, refers to process industries in which chemical methods play a major role in the production process. Monitoring of chemical processing in chemical factory workshops is very important. On the one hand, it is necessary to improve the safety awareness and skill level of workers, and on the other hand, it is to strengthen inspections.

[0003] For example, in the production and processing of food additives, food additives are usually large particles after initial processing, and then they are ground into small particles by a grinder before they can be used by people. It is particularly important to supervise the food additives during the grinding process.

[0004] The monitoring of food additives during grinding in the prior art still has the following deficiencies:

[0005] 1. In the prior art, the raw materials of food additives are usually directly put into the grinding equipment during the grinding process. This process lacks the pre-detection link of the raw materials. Since the raw materials may be stored for a long time, there is a risk of moisture, and the current processing flow does not include monitoring measures for the state of the raw materials. This results in the continued grinding and mixing of the damp raw materials, which in turn has an adverse effect on the production quality of food additives.

[0006] 2. During the grinding process, the dust inside the device gradually increases and gradually spreads to the outside, which is likely to cause environmental pollution. When the dust inside the device accumulates to a certain extent, it encounters static electricity and is prone to explosion, causing production accidents.

[0007] In response to the above problems, the present invention document proposes a chemical production safety monitoring method, device and equipment. Summary of the invention

[0008] The purpose of the present invention is to solve the shortcomings of the existing lack of pre-detection link for raw materials and inability to control dust inside the device, and to propose a chemical production safety monitoring method, device and equipment.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A chemical production safety monitoring method comprises the following steps:

[0011] S1. The raw materials are transported to the monitoring device, and the quality of the raw materials is pre-tested by the monitoring device;

[0012] S2, the dry raw materials continue to be conveyed and ground inside the monitoring device, while the damp raw materials are collected separately;

[0013] S3, when grinding the raw materials, the air inside the monitoring device is discharged and the dust contained therein is filtered to reduce the dust concentration inside the monitoring device, and the filtered air is used to dry the damp raw materials collected in step S2;

[0014] S4, when grinding the raw material inside the monitoring device, the damp raw material collected in step S2 can be driven to vibrate up and down, so that the air filtered in step S3 can quickly dry the raw material;

[0015] S5. During the grinding process, the dust concentration and static electricity inside the monitoring device can be monitored, the internal dust concentration can be controlled and static electricity can be eliminated in time to ensure the safety of the grinding process.

[0016] A chemical production safety monitoring device, applied to the above-mentioned chemical production safety monitoring method, comprises a grinding box, wherein two crushing rollers are rotatably connected inside the grinding box, and the two crushing rollers cooperate to grind raw materials, a feed cover is fixed on the top of the grinding box, and the feed cover is connected to the grinding box, a feed port is provided on one side of the feed cover, a conveyor belt is provided on the top of the grinding box, one end of the conveyor belt passes through the feed port and extends into the feed cover, and is used to convey the raw materials to be ground into the grinding box;

[0017] It also includes a U-shaped frame arranged on the top of the grinding box, wherein a shovel plate and a camera are respectively arranged on both sides of the U-shaped frame, and the bottom of the shovel plate touches the top of the conveyor belt, and the shovel plate and the camera are respectively used to turn over, spread out and shoot and detect the raw materials transported on the conveyor belt;

[0018] It also includes a box body fixed to the side of the grinding box away from the U-shaped frame, the box body is provided with a hollow plate for holding the damp raw materials, the side of the feed cover away from the feed port is provided with a discharge port, the bottom inner wall of the discharge port is slidably connected with a guide plate, and the top and bottom ends of the guide plate are respectively matched with the conveyor belt and the box body, so as to discharge the damp raw materials transported on the conveyor belt into the box body;

[0019] The pre-detection structure is arranged on the U-shaped frame and is used for pre-detection of the raw materials transported on the conveyor belt;

[0020] A separation structure, arranged in the feed cover, is used to separate the dry raw materials and the wet raw materials transported on the conveyor belt;

[0021] The dust removal structure is arranged on one side of the grinding box and is used to filter the dust generated during the grinding process of the grinding box. The filtered air during the operation of the dust removal structure can dry the damp raw materials in the separation structure.

[0022] In one possible design, the pre-detection structure includes a reciprocating screw and a rotating rod that are rotated on both sides of the U-shaped frame through a base, and the reciprocating screw and the rotating rod are connected by a synchronous wheel and a synchronous belt transmission. The reciprocating screw is located on the side of the U-shaped frame close to the feed cover, and a camera is provided with a threaded sleeve on the outer wall of the reciprocating screw for photographing the raw materials after the shovel plate is turned over, and the camera is slidably connected to one side of the U-shaped frame, and a plurality of base blocks are fixed on the side of the U-shaped frame away from the reciprocating screw, and a connecting rod is slidably penetrated in the plurality of base blocks, and a limit plate is fixedly provided on the outer walls of the plurality of connecting rods for limiting the downward movement of the connecting rod, and the bottom ends of the plurality of connecting rods are fixedly connected to the top of the shovel plate, and the plurality of connecting rods A rack is fixed on one side of the connecting rod close to the reciprocating screw rod, and a plurality of broken gears are fixedly sleeved on the outer wall of the rotating rod, and the broken gears are intermittently meshed with the racks to control the up and down movement of the gap between the connecting rod and the shovel plate, and the shovel plate cooperates with the conveyor belt to turn over and spread the raw materials transported on the conveyor belt; the reciprocating screw rod is driven to rotate by a motor, and the reciprocating screw rod drives the rotating rod and the broken gear to rotate through a synchronous wheel and a synchronous belt, and the intermittent meshing of the broken gears and the racks drives the connecting rod and the shovel plate to reciprocate up and down, and when the shovel plate reciprocates up and down, the raw materials transported on the conveyor belt can be turned over and spread, and the reciprocating screw rod drives the camera to move back and forth, and the camera can clearly take pictures of the raw materials on the conveyor belt to determine whether the raw materials are damp.

[0023] In a possible design, the separation structure includes a closing plate sliding on the inner wall of the feed hood on one side near the discharge port, and the closing plate is used to close the discharge port to prevent dust in the grinding box from spilling to the outside, and a multi-stage electric push rod is fixed on the top of the feed hood, the output shaft of the multi-stage electric push rod extends into the feed hood and is fixedly connected to the top of the closing plate, both sides of the guide plate are rotatably connected with connecting rods located in the feed hood, and two connecting arms are fixed on the side of the closing plate near the conveyor belt, the top ends of the two connecting rods are respectively rotatably connected to the bottom ends of the two connecting arms, and the movement of the guide plate is controlled by the connecting rod when the connecting arm moves upward; the output shaft of the multi-stage electric push rod drives the closing plate to move up to release the closure of the discharge port, the closing plate drives the connecting arm to move up, and the connecting arm drives the guide plate to move along the inner wall of the bottom of the discharge port into the feed hood through the connecting rod until the top end of the guide plate touches the conveyor belt, thereby being able to discharge the damp raw materials transported on the conveyor belt into the box through the guide plate.

[0024] In one possible design, the dust removal structure includes a placement plate fixed to a side of the grinding box close to the box body, and the placement plate is located below the box body, an air suction pump is fixed on one side of the grinding box, an air inlet end of the air suction pump is connected to the inside of the grinding box through a hose, an air outlet end of the air suction pump is fixed with a top cover through a hose, a dust removal cylinder is fixedly penetrated in the placement plate, and the top cover is threadedly connected to the dust removal cylinder, a cloth bag is detachably fixed in the dust removal cylinder for filtering dust, a return air pipe is fixed at the bottom of the dust removal cylinder, and the top of the return air pipe is fixedly penetrated through the bottom inner wall of the box body for injecting filtered air into the box body and drying the damp raw materials; the dust generated inside the grinding box is transported to the dust removal cylinder through the hose by the air suction pump, and the dust is filtered by the cloth bag to avoid an explosion accident caused by excessive dust concentration inside the grinding box, and the filtered air is guided into the box body through the return air pipe to air-dry the damp raw materials inside it for later use.

[0025] In one possible design, a plurality of insulating curtains are fixed to the inner wall of the feed hood on the side away from the closing plate, and the plurality of insulating curtains are used together to close the feed port to prevent the dust inside the grinding box from escaping to the outside through the feed port. Two material guide inclined plates are fixed in the grinding box, and the two material guide inclined plates are located above the crushing rollers to guide the raw materials between the two crushing rollers.

[0026] In one possible design, an explosion-proof dust detector and an electrostatic detector are fixedly penetrated on one side of the grinding box, and the explosion-proof dust detector is used to detect the dust concentration inside the grinding box in real time, and the electrostatic detector is used to detect the static electricity inside the grinding box in real time. A grounding copper rod is fixedly penetrated on the bottom of the grinding box, and the bottom end of the grounding copper rod contacts the ground, which is used to conduct the static electricity in the grinding box to the ground.

[0027] In a possible design, one end of the two crushing rollers are rotated to extend to one side of the grinding box and are fixed with spur gears, the two spur gears are meshed with each other, a drive motor is fixed to one side of the grinding box through a frame, the output shaft of the drive motor is fixedly connected to the center of one of the spur gears through a coupling, a protective shell for protecting the spur gears and the drive motor is fixed to one side of the grinding box, and the protective shell is located on the side of the grinding box away from the placement plate, a discharge pipe is fixed to one side of the grinding box for discharging ground raw materials, and a valve is provided on the discharge pipe.

[0028] In a possible design, a plurality of fixed blocks are fixed to the inner walls of the box body on both sides away from each other, a guide rod is slidably penetrated in the plurality of fixed blocks, the tops of the plurality of guide rods are fixedly connected to the bottom of the hollow plate, a spring is fixed between the top of the fixed block and the bottom of the box body, and the spring is sleeved on the outer wall of the guide rod, two vertical rods are fixed to the bottom of the hollow plate, the bottom ends of the two vertical rods are slidably extended to the bottom of the box body, and the ends of the two crushing rollers away from the spur gear are rotated to extend to one side of the grinding box and are fixed There is a cam, and the cam cooperates with the vertical rod to drive the hollow plate to vibrate reciprocatingly up and down; as the guide plate discharges the damp raw materials onto the hollow plate and the weight of the raw materials gradually increases, the hollow plate drives the vertical rod to move downward until the vertical rod hits the cam, so the cooperation between the cam and the vertical rod can drive the hollow plate to vibrate reciprocatingly up and down, and then vibrate the gradually increasing raw materials thereon, so that the air discharged from the return air pipe dries the damp raw materials, and as the raw materials on the hollow plate gradually increase, the vibration amplitude of the hollow plate becomes larger, so the accumulated damp raw materials can be effectively dried.

[0029] Chemical production safety monitoring equipment includes the above-mentioned chemical production safety monitoring device.

[0030] Beneficial effect: In the present invention, a camera is provided on the threaded sleeve on the outer wall of the reciprocating screw, and the camera is slidably connected to one side of the U-shaped frame, a connecting rod is slidably penetrated in the plurality of base blocks, the bottom ends of the plurality of connecting rods are fixedly connected to the top of the shoveling plate, a rack is fixed on one side of the plurality of base blocks, and a plurality of residual gears are provided on the fixed sleeve on the outer wall of the rotating rod; the reciprocating screw drives the rotating rod to rotate through the synchronous wheel and the synchronous belt, and the intermittent engagement of the residual gear and the rack drives the connecting rod and the shoveling plate to reciprocate up and down, and when the shoveling plate reciprocates up and down, the raw materials transported on the conveyor belt can be turned over and spread out, and the reciprocating screw drives the camera to reciprocate, and the camera can clearly shoot the raw materials on the conveyor belt to determine whether the raw materials are damp;

[0031] In the present invention, a closing plate is slidably connected to the inner wall of one side of the feed cover, and connecting rods are rotatably connected to both sides of the guide plate. Two connecting arms are fixed to the side of the closing plate close to the conveyor belt, and the top ends of the two connecting rods are rotatably connected to the bottom ends of the two connecting arms respectively; the closing plate moves up to release the closure of the discharge port, and the closing plate drives the connecting arm to move up, and the connecting arm drives the guide plate to move along the inner wall of the bottom of the discharge port into the feed cover through the connecting rod until the top end of the guide plate hits the conveyor belt, so that the damp raw materials transported on the conveyor belt can be discharged into the box through the guide plate, thereby completing the separation of the damp raw materials;

[0032] In the present invention, the air inlet end of the suction pump is connected with the interior of the grinding box through a hose, the air outlet end of the suction pump is fixed with a top cover through a hose, a dust collector is fixedly penetrated in the placement plate, and the top cover is threadedly connected to the dust collector, a cloth bag is detachably fixed in the dust collector, a return air pipe is fixed at the bottom of the dust collector, and the top of the return air pipe is fixedly penetrated through the bottom inner wall of the box; the dust generated inside the grinding box is transported to the dust collector through the hose by the suction pump, and the dust is filtered by the cloth bag to avoid explosion accidents caused by excessive dust concentration in the grinding box, and the filtered air is guided into the box through the return air pipe to air-dry the damp raw materials inside it for later use.

[0033] In the present invention, two vertical rods are fixed to the bottom of the hollow plate, and the bottom ends of the two vertical rods are slidably extended to the bottom of the box body. A cam is fixed to one end of the two crushing rollers, and the cam cooperates with the vertical rods; as the guide plate discharges the damp raw materials onto the hollow plate and the weight of the raw materials gradually increases, the hollow plate drives the vertical rods to move downward until the vertical rods hit the cams. Therefore, the cooperation between the cams and the vertical rods can drive the hollow plate to vibrate back and forth up and down, thereby vibrating the gradually increasing raw materials thereon, and effectively drying the accumulated damp raw materials.

[0034] In the present invention, pre-detection can be carried out in time before the raw materials are ground, and the damp raw materials can be separated in time during the detection, so that the production quality of food additives is not affected by the damp raw materials. In the grinding process, the internal dust concentration and static electricity can be detected in real time, and the dust inside the device can be filtered. The filtered air can also dry the damp raw materials, which is convenient for later use and ensures the safety of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of a three-dimensional structure of a chemical production safety monitoring device provided in Example 1 of the present invention from a first viewing angle;

[0036] Figure 2 A schematic diagram of the three-dimensional structure of the chemical production safety monitoring device provided in Example 1 of the present invention from a second viewing angle;

[0037] Figure 3 This is a schematic diagram of the main cross-sectional structure of the chemical production safety monitoring device provided in Example 1 of the present invention;

[0038] Figure 4 A schematic diagram of a three-dimensional exploded structure of a rotating rod, a U-shaped frame and a reciprocating screw rod of a chemical production safety monitoring device provided in Example 1 of the present invention;

[0039] Figure 5 A schematic diagram of a three-dimensional exploded structure of a residual gear and rack of a chemical production safety monitoring device provided in Example 1 of the present invention;

[0040] Figure 6 A schematic diagram of a three-dimensional cross-sectional structure of a feed cover and a guide plate of a chemical production safety monitoring device provided in Example 1 of the present invention;

[0041] Figure 7 A schematic diagram of the three-dimensional structure of the closing plate, the guide plate and the connecting rod of the chemical production safety monitoring device provided in Example 1 of the present invention;

[0042] Figure 8 This is a schematic diagram of the front and cross-sectional structure of the hollow plate and box of the chemical production safety monitoring device provided in Example 1 of the present invention;

[0043] Fig. 9 A schematic diagram of a three-dimensional explosion structure of a dust removal cylinder, a bag and a top cover of a chemical production safety monitoring device provided in Example 1 of the present invention;

[0044] Fig.10 A schematic diagram of a three-dimensional exploded structure of a spur gear, a spur gear and a drive motor of a chemical production safety monitoring device provided in Example 1 of the present invention;

[0045] Fig.11 A schematic diagram of a three-dimensional explosion structure of a crushing roller, a cam and a vertical rod of a chemical production safety monitoring device provided in Example 2 of the present invention;

[0046] Fig.12 This is a schematic diagram of the three-dimensional explosion structure of the hollow plate, guide rods and vertical rods of the chemical production safety monitoring device provided in Example 2 of the present invention.

[0047] In the figure: 1. grinding box; 2. crushing roller; 3. spur gear; 4. driving motor; 5. protective shell; 6. feed cover; 7. feed port; 8. conveyor belt; 9. isolation curtain; 10. U-shaped frame; 11. reciprocating screw rod; 12. camera; 13. rotating rod; 14. residual gear; 15. connecting rod; 16. limit plate; 17. rack; 18. discharge port; 19. guide plate; 20. closing plate; 21. connecting arm; 22. connecting rod; 2 3. Multi-stage electric push rod; 24. Box body; 25. Hollow plate; 26. Fixed block; 27. Guide rod; 28. Spring; 29. ​​Vertical rod; 30. Return air pipe; 31. Placement plate; 32. Dust collector; 33. Cloth bag; 34. Top cover; 35. Suction pump; 36. Explosion-proof dust detector; 37. Static electricity detector; 38. Cam; 39. Grounding copper rod; 40. Discharge pipe; 41. Guide ramp; 42. Shovel plate; 43. Base block. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0049] Embodiment 1: A chemical production safety monitoring method, characterized in that it comprises the following steps:

[0050] S1. The raw materials are transported to the monitoring device, and the quality of the raw materials is pre-tested by the monitoring device;

[0051] S2, the dry raw materials continue to be conveyed and ground inside the monitoring device, while the damp raw materials are collected separately;

[0052] S3, when grinding the raw materials, the air inside the monitoring device is discharged and the dust contained therein is filtered to reduce the dust concentration inside the monitoring device, and the filtered air is used to dry the damp raw materials collected in step S2;

[0053] S4, when grinding the raw material inside the monitoring device, the damp raw material collected in step S2 can be driven to vibrate up and down, so that the air filtered in step S3 can quickly dry the raw material;

[0054] S5. During the grinding process, the dust concentration and static electricity inside the monitoring device can be monitored, the internal dust concentration can be controlled and static electricity can be eliminated in time to ensure the safety of the grinding process.

[0055] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 The monitoring device relates to the field of chemical production technology. The device comprises a grinding box 1. Two crushing rollers 2 are rotatably connected inside the grinding box 1. The two crushing rollers 2 cooperate with each other to grind the raw materials. A feed cover 6 is fixed on the top of the grinding box 1. The feed cover 6 is connected to the inside of the grinding box 1 to ensure that the raw materials can smoothly enter the grinding box 1. A feed port 7 is provided on one side of the feed cover 6 for adding raw materials into the device.

[0056] Reference Figure 3 and Figure 6 A conveyor belt 8 is also provided on the top of the grinding box 1. One end of the conveyor belt 8 passes through the feed port 7 and extends into the feed cover 6, so as to transport the raw materials to be ground from the outside to the grinding box 1.

[0057] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5A U-shaped frame 10 is also provided on the top of the grinding box 1. A shovel plate 42 and a camera 12 are provided on both sides of the U-shaped frame 10. The bottom of the shovel plate 42 contacts the top of the conveyor belt 8, and is used to turn over and spread the raw materials transported on the conveyor belt 8 to ensure that the raw materials can be evenly distributed on the conveyor belt 8 and improve the grinding efficiency. The camera 12 is used to shoot and detect the raw materials transported on the conveyor belt 8 to determine whether the raw materials are damp or have other abnormal conditions.

[0058] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 8 In addition, a box body 24 is fixed on the side of the grinding box 1 away from the U-shaped frame 10. A hollow plate 25 is provided in the box body 24 for containing the damp raw materials. A discharge port 18 is provided on the side of the feed cover 6 away from the feed port 7, and a guide plate 19 is slidably connected to the bottom inner wall of the discharge port 18. The top and bottom ends of the guide plate 19 are respectively matched with the conveyor belt 8 and the box body 24, and are used to discharge the damp raw materials transported on the conveyor belt 8 into the box body 24 through the discharge port 18.

[0059] Reference Figure 3-Figure 5 In order to realize the pre-detection of raw materials, the device is provided with a pre-detection structure on the U-shaped frame 10. The structure includes a reciprocating screw 11 and a rotating rod 13 which are rotatably connected to both sides of the U-shaped frame 10 through a base. The reciprocating screw 11 and the rotating rod 13 are connected by a synchronous wheel and a synchronous belt transmission. The reciprocating screw 11 is located on the side of the U-shaped frame 10 close to the feed cover 6, and a camera 12 is provided on the threaded sleeve of its outer wall for photographing the raw materials after the shovel plate 42 is turned over. The camera 12 is slidably connected to one side of the U-shaped frame 10 to ensure that it can reciprocate with the rotation of the reciprocating screw 11. On the side of the U-shaped frame 10 away from the reciprocating screw 11, a plurality of base blocks 43 are fixed, and a connecting rod 15 is slidably penetrated in the base blocks 43. A limit plate 16 is provided on the outer wall fixed sleeve of the connecting rod 15 for limiting the downward movement of the connecting rod 15. The bottom end of the connecting rod 15 is fixedly connected to the top of the shovel plate 42, and a rack 17 is fixed to the side of the connecting rod 15 close to the reciprocating screw rod 11. A plurality of residual gears 14 are fixedly sleeved on the outer wall of the rotating rod 13, and the residual gears 14 are intermittently meshed with the rack 17 to control the gap between the connecting rod 15 and the shovel plate 42 to move up and down.

[0060] Specifically, the reciprocating screw 11 is driven to rotate by a motor, and the reciprocating screw 11 drives the rotating rod 13 and the residual gear 14 to rotate through the synchronous wheel and the synchronous belt. The intermittent meshing of the residual gear 14 and the rack 17 drives the connecting rod 15 and the shovel plate 42 to move up and down, thereby turning over and spreading the raw materials on the conveyor belt 8. At the same time, the reciprocating screw 11 drives the camera 12 to move back and forth, and the camera 12 can clearly shoot the raw materials on the conveyor belt 8 to determine whether the raw materials are damp.

[0061] Reference Figure 6-Figure 8 In order to separate the dry raw materials from the damp raw materials, the device is provided with a separation structure in the feed cover 6. The structure includes a closing plate 20 slidably connected to the inner wall of the feed cover 6 near the discharge port 18. The closing plate 20 is used to close the discharge port 18 to prevent the dust in the grinding box 1 from escaping to the outside. A multi-stage electric push rod 23 is fixed to the top of the feed cover 6. The output shaft of the multi-stage electric push rod 23 extends into the feed cover 6 and is fixedly connected to the top of the closing plate 20. Both sides of the guide plate 19 are rotatably connected with connecting rods 22 located in the feed cover 6, and two connecting arms 21 are fixed to the side of the closing plate 20 near the conveyor belt 8. The top ends of the two connecting rods 22 are rotatably connected to the bottom ends of the two connecting arms 21 respectively.

[0062] Specifically, when the output shaft of the multi-stage electric push rod 23 drives the closing plate 20 to move upward, the closing plate 20 drives the connecting arm 21 to move upward. The connecting arm 21 drives the guide plate 19 to move along the bottom inner wall of the discharge port 18 into the feed cover 6 through the connecting rod 22 until the top of the guide plate 19 contacts the conveyor belt 8. At this time, the damp raw materials transported on the conveyor belt 8 will be guided by the guide plate 19 and discharged into the box body 24 through the discharge port 18, thereby achieving the separation of dry raw materials and damp raw materials.

[0063] Reference Figure 8 and Fig. 9In addition, the device also includes a dust removal structure, which is arranged on one side of the grinding box 1 and is used to filter the dust generated during the grinding process of the grinding box 1. The air filtered during the operation of the dust removal structure can dry the damp raw materials in the separation structure, further improving the safety and reliability of the device. The dust removal structure includes a placement plate 31 fixedly installed on one side of the grinding box 1 close to the box body 24, and ensures that its position is below the box body 24. The main function of this placement plate 31 is to support the subsequent dust removal components. Then, on one side of the grinding box 1, we fixedly installed an air pump 35. The air inlet end of the air pump 35 is connected to the inside of the grinding box 1 through a hose, so that the air pump 35 can effectively extract the dust inside the grinding box 1. The air outlet end of the air pump 35 is also connected to a top cover 34 through a hose. In the placement plate 31, we fixedly installed a dust removal cylinder 32. This dust removal cylinder 32 is designed to accommodate and filter the dust extracted by the air pump 35. To achieve this, the top cover 34 and the dust collecting cylinder 32 are connected by threads to ensure the tightness of the connection. Inside the dust collecting cylinder 32, a cloth bag 33 is detachably fixed. The material and structure of the cloth bag 33 are carefully selected to ensure that it has a good filtering effect on dust.

[0064] Reference Figure 8 and Fig. 9 In addition, a return air pipe 30 is fixedly connected to the bottom of the dust removal cylinder 32. The top of the return air pipe 30 is fixedly penetrated through the bottom inner wall of the box 24, so that the air filtered by the bag 33 can be guided into the box 24 through the return air pipe 30. Since the box 24 may store damp raw materials, the filtered air can dry the raw materials for later use.

[0065] In actual operation, when dust is generated inside the grinding box 1, the suction pump 35 will start to transport the dust to the dust removal cylinder 32 through the hose. The dust is trapped by the filtering action of the bag 33, and the filtered air is guided into the box 24 through the return air pipe 30. In this way, not only can the explosion accident caused by excessive dust concentration inside the grinding box 1 be avoided, but also the damp raw materials in the box 24 can be air-dried.

[0066] Reference Figure 6 In order to further prevent the dust from escaping, we fixedly installed a plurality of isolation curtains 9 on the inner wall of the feed cover 6 away from the closing plate 20. These isolation curtains 9 cooperate with each other to effectively seal the feed port 7, thereby preventing the dust inside the grinding box 1 from escaping to the outside through the feed port 7.

[0067] Reference Figure 3In addition, in order to guide the raw materials into the grinding rollers 2 for grinding, two guide ramps 41 are fixedly installed in the grinding box 1. The two guide ramps 41 are located above the grinding rollers 2 and can smoothly guide the raw materials between the two grinding rollers 2.

[0068] Reference Figure 1 and Figure 3 In terms of safety, we have installed an explosion-proof dust detector 36 and an electrostatic detector 37 on one side of the grinding box 1. The explosion-proof dust detector 36 can detect the dust concentration inside the grinding box 1 in real time to ensure that the dust concentration is always within a safe range. The electrostatic detector 37 can detect the static electricity inside the grinding box 1 in real time to prevent explosion accidents caused by static electricity accumulation.

[0069] Reference Figure 3 Finally, in order to safely conduct the static electricity in the grinding box 1 to the ground, we fixedly installed a grounding copper rod 39 through the bottom of the grinding box 1. The bottom end of the grounding copper rod 39 directly contacts the ground, which can effectively conduct the static electricity in the grinding box 1, thereby further improving the safety of the entire device.

[0070] Reference Figure 3 and Fig.10 , one end of each of the two crushing rollers 2 extends out of one side of the grinding box 1, and a spur gear 3 is fixed to the extended portion. The two spur gears 3 are meshed with each other, which means that when one spur gear 3 rotates, the other spur gear 3 will rotate in the opposite direction, thereby driving the two crushing rollers 2 to rotate relative to each other and grind the raw materials. In order to drive one of the spur gears 3 (and the crushing roller 2 connected to it) to rotate, we fixed a drive motor 4 on one side of the grinding box 1 through the frame. The output shaft of the drive motor 4 is fixedly connected to the center of one of the spur gears 3 through a coupling, so when the drive motor 4 is started, it will directly drive this spur gear 3 (and the crushing roller 2) to rotate.

[0071] Reference Figure 3 and Fig.10 In order to protect the spur gear 3 and the drive motor 4, a protective shell 5 is fixed on one side of the grinding box 1. The protective shell 5 is located on the side of the grinding box 1 away from the placement plate 31, which can effectively prevent external impurities or water from entering and ensure the normal operation of the spur gear 3 and the drive motor 4.

[0072] Reference Figure 3 On the other side of the grinding box 1, we set a discharge pipe 40 for discharging the ground raw materials. A valve is provided on the discharge pipe 40 to control the discharge speed and discharge amount of the raw materials.

[0073] Example 2: Reference Fig.11 and Fig.12, based on the improvement of Example 1: Further, multiple fixing blocks 26 are fixed to the inner walls of both sides of the box body 24, and guide rods 27 are slidably penetrated in these fixing blocks 26. The top of the guide rod 27 is fixedly connected to the bottom of the hollow plate 25, so when the hollow plate 25 moves up and down, the guide rod 27 will slide in the fixing block 26.

[0074] Reference Fig.12 In order to support and buffer the hollow plate 25, we fix springs 28 between the top of the fixing block 26 and the bottom of the box 24, and the springs 28 are sleeved on the outer wall of the guide rod 27. In this way, when the hollow plate 25 is subjected to pressure, the springs 28 can play a buffering role and can also help the hollow plate 25 return to its original position.

[0075] Reference Fig.11 and Fig.12 At the bottom of the hollow plate 25, we fixed two vertical rods 29, and the bottom ends of the two vertical rods 29 are slidably extended to the bottom of the box 24. At the same time, the ends of the two crushing rollers 2 away from the spur gear 3 are extended out of one side of the grinding box 1, and the cam 38 is fixed to the extended part. When the crushing roller 2 rotates, the cam 38 will also rotate.

[0076] Reference Fig.11 and Fig.12 , these two cams 38 and the vertical rod 29 cooperate with each other. When the guide plate 19 discharges the damp raw materials onto the hollow plate 25, as the weight of the raw materials gradually increases, the hollow plate 25 will drive the vertical rod 29 to move downward. When the vertical rod 29 hits the cam 38, due to the rotation of the cam 38, it will push the vertical rod 29 (and the hollow plate 25) to vibrate up and down. This vibration can effectively loosen and mix the raw materials on the hollow plate 25, and at the same time, the air discharged through the return air pipe 30 can also dry the damp raw materials.

[0077] In particular, as the amount of raw materials on the hollow plate 25 gradually increases, the pressure on the hollow plate 25 and the vertical rods 29 thereon will gradually increase. This will increase the compression of the spring 28, thereby increasing the amplitude of the vibration of the hollow plate 25. This change can effectively perform a deeper drying process on the accumulated damp raw materials, ensuring the drying effect of the raw materials.

[0078] Chemical production safety monitoring equipment includes the above-mentioned chemical production safety monitoring device. We integrate the above-mentioned chemical production safety monitoring device into a complete chemical production safety monitoring equipment. This equipment not only has the function of raw material grinding and drying, but also can monitor and warn various parameters in the production process in real time through the integrated safety monitoring system to ensure the safety and stability of production.

[0079] The method for using the chemical production safety monitoring device comprises the following steps:

[0080] S1. The raw materials are transported by the conveyor belt 8. During the transportation process, the reciprocating screw 11 is driven by the motor to rotate. The reciprocating screw 11 drives the rotating rod 13 and the residual gear 14 to rotate through the synchronous wheel and the synchronous belt. The intermittent meshing of the residual gear 14 and the rack 17 drives the connecting rod 15 and the shovel plate 42 to move up and down. When the shovel plate 42 moves up and down, the raw materials transported on the conveyor belt 8 can be turned over and spread out, and the reciprocating screw 11 drives the camera 12 to move back and forth. The camera 12 can clearly shoot the raw materials on the conveyor belt 8 and observe the appearance of the raw materials, such as whether there is caking, whether the color changes, etc.; if the raw materials are severely caking or the color becomes darker, it may be a manifestation of moisture;

[0081] S2. If the raw material is dry, it falls between the two crushing rollers 2 for crushing and grinding. When the raw material is damp, the output shaft of the multi-stage electric push rod 23 drives the closing plate 20 to move up to release the closure of the discharge port 18. The closing plate 20 drives the connecting arm 21 to move up. The connecting arm 21 drives the guide plate 19 to move along the inner wall of the bottom of the discharge port 18 into the feed cover 6 through the connecting rod 22 until the top of the guide plate 19 hits the conveyor belt 8, so that the damp raw material transported on the conveyor belt 8 can be discharged into the box body 24 through the guide plate 19. In addition, when the dry raw material is ground in the grinding box 1, the feed port 7 and the discharge port 18 are closed by the cooperation of the isolation curtain 9 and the closing plate 20 to prevent the dust generated during the grinding process from escaping to the outside and preventing the dust from polluting the environment.

[0082] S3, when the driving motor 4 drives the spur gear 3 to rotate, the two meshing spur gears 3 respectively drive the two crushing rollers 2 to rotate in opposite directions to grind the raw materials, the dust concentration inside the grinding box 1 is detected in real time by the explosion-proof dust detector 36, and the dust generated inside the grinding box 1 is transported to the dust removal cylinder 32 through the hose by the suction pump 35, and the dust is filtered by the cloth bag 33 to avoid the dust concentration inside the grinding box 1 being too high and causing an explosion accident, and the filtered air is guided to the box body 24 through the return air pipe 30 to air-dry the damp raw materials inside it for later use. In addition, the static electricity detector 37 can detect the static electricity state in the grinding box 1, and guide the static electricity to the ground through the grounding copper rod 39 to avoid static electricity causing dust explosion inside the grinding box 1;

[0083] S4. When the crushing roller 2 rotates, the cam 38 can be driven to rotate. As the guide plate 19 discharges the damp raw materials onto the hollow plate 25 and the weight of the raw materials gradually increases, the hollow plate 25 drives the vertical rod 29 to move downward until the vertical rod 29 hits the cam 38. Therefore, the cooperation between the cam 38 and the vertical rod 29 can drive the hollow plate 25 to vibrate up and down, and then vibrate the gradually increasing raw materials thereon, so that the air discharged from the return air pipe 30 dries the damp raw materials. As the raw materials on the hollow plate 25 gradually increase, the vibration amplitude of the hollow plate 25 becomes larger, so the accumulated damp raw materials can be effectively dried.

[0084] However, as is well known to those skilled in the art, the working principles and wiring methods of the drive motor 4, the suction pump 35, the multi-stage electric push rod 23, the camera 12, the explosion-proof dust detector 36 and the electrostatic detector 37 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0085] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A chemical production safety monitoring device, applied to a chemical production safety monitoring method, characterized in that: The chemical production safety monitoring method comprises the following steps: S1. The raw materials are transported to the monitoring device, and the quality of the raw materials is pre-tested by the monitoring device; S2, the dry raw materials continue to be conveyed and ground inside the monitoring device, while the damp raw materials are collected separately; S3, when grinding the raw materials, the air inside the monitoring device is discharged and the dust contained therein is filtered to reduce the dust concentration inside the monitoring device, and the filtered air is used to dry the damp raw materials collected in step S2; S4, when grinding the raw material inside the monitoring device, the damp raw material collected in step S2 can be driven to vibrate up and down, so that the air filtered in step S3 can quickly dry the raw material; S5. During the grinding process, the dust concentration and static electricity inside the monitoring device can be monitored, the internal dust concentration can be controlled and static electricity can be eliminated in time to ensure the safety of the grinding process; The chemical production safety monitoring device comprises a grinding box (1), wherein two grinding rollers (2) are rotatably connected inside the grinding box (1), and the two grinding rollers (2) cooperate to grind raw materials, a feed cover (6) is fixed on the top of the grinding box (1), and the feed cover (6) is connected to the grinding box (1), a feed port (7) is provided on one side of the feed cover (6), and a conveyor belt (8) is provided on the top of the grinding box (1), and one end of the conveyor belt (8) passes through the feed port (7) and extends into the feed cover (6), and is used to convey the raw materials to be ground into the grinding box (1); It also includes a U-shaped frame (10) arranged on the top of the grinding box (1), wherein a shovel plate (42) and a camera (12) are respectively provided on both sides of the U-shaped frame (10), and the bottom of the shovel plate (42) contacts the top of the conveyor belt (8), and the shovel plate (42) and the camera (12) are respectively used to turn over, spread out, and photograph and detect the raw materials transported on the conveyor belt (8); It also includes a box body (24) fixed to a side of the grinding box (1) away from the U-shaped frame (10), wherein a hollow plate (25) for containing damp raw materials is provided in the box body (24), and a discharge port (18) is provided on a side of the feed cover (6) away from the feed port (7), wherein a guide plate (19) is slidably connected to the inner wall of the bottom of the discharge port (18), and the top and bottom ends of the guide plate (19) respectively cooperate with the conveyor belt (8) and the box body (24) to discharge the damp raw materials transported on the conveyor belt (8) into the box body (24); A pre-detection structure, arranged on the U-shaped frame (10), for pre-detecting the raw materials transported on the conveyor belt (8); A separation structure, arranged in the feed cover (6), for separating the dry raw materials and the wet raw materials transported on the conveyor belt (8); The dust removal structure is arranged on one side of the grinding box (1) and is used to filter dust generated during the grinding process of the grinding box (1); and the air filtered during the operation of the dust removal structure can dry the damp raw materials in the separation structure.

2. The chemical production safety monitoring device according to claim 1, characterized in that: The pre-detection structure comprises a reciprocating screw (11) and a rotating rod (13) which are rotated on both sides of the U-shaped frame (10) through a base, and the reciprocating screw (11) and the rotating rod (13) are connected by a synchronous wheel and a synchronous belt transmission. The reciprocating screw (11) is located on a side of the U-shaped frame (10) close to the feed cover (6). A camera (12) is provided on the outer wall thread sleeve of the reciprocating screw (11) for photographing the raw material after the shovel plate (42) is turned over, and the camera (12) is slidably connected to one side of the U-shaped frame (10). A plurality of base blocks (43) are fixed on a side of the U-shaped frame (10) away from the reciprocating screw (11), and a connecting rod (43) is slidably penetrated in each of the plurality of base blocks (43). A connecting rod (15), the outer walls of the plurality of connecting rods (15) are fixedly sleeved with a limit plate (16) for limiting the downward movement of the connecting rod (15), the bottom ends of the plurality of connecting rods (15) are fixedly connected to the top of the shovel plate (42), the sides of the plurality of connecting rods (15) close to the reciprocating screw rod (11) are fixed with a rack (17), the outer wall of the rotating rod (13) is fixedly sleeved with a plurality of residual gears (14), and the residual gears (14) are intermittently meshed with the rack (17) for controlling the gap between the connecting rod (15) and the shovel plate (42) to move up and down, and the shovel plate (42) cooperates with the conveyor belt (8) to turn over and spread the raw materials transported on the conveyor belt (8).

3. The chemical production safety monitoring device according to claim 2, characterized in that: The separation structure comprises a closing plate (20) sliding on the inner wall of the feed cover (6) near the discharge port (18), and the closing plate (20) is used to close the discharge port (18) to prevent dust in the grinding box (1) from escaping to the outside. A multi-stage electric push rod (23) is fixed on the top of the feed cover (6), and the output shaft of the multi-stage electric push rod (23) extends into the feed cover (6) and is fixedly connected to the top of the closing plate (20). Both sides of the guide plate (19) are rotatably connected to connecting rods (22) located in the feed cover (6). Two connecting arms (21) are fixed on one side of the closing plate (20) near the conveyor belt (8), and the top ends of the two connecting rods (22) are rotatably connected to the bottom ends of the two connecting arms (21) respectively. When the connecting arms (21) move upward, the guide plate (19) is controlled to move through the connecting rods (22).

4. The chemical production safety monitoring device according to claim 3, characterized in that: The dust removal structure comprises a placement plate (31) fixed to a side of the grinding box (1) close to the box body (24), and the placement plate (31) is located below the box body (24); an air suction pump (35) is fixed to one side of the grinding box (1); an air inlet end of the air suction pump (35) is connected to the inside of the grinding box (1) through a hose; a top cover (34) is fixed to the air outlet end of the air suction pump (35) through a hose; a dust removal cylinder (32) is fixedly penetrated in the placement plate (31), and the top cover (34) is threadedly connected to the dust removal cylinder (32); a cloth bag (33) is detachably fixed in the dust removal cylinder (32) for filtering dust; a return air pipe (30) is fixed to the bottom of the dust removal cylinder (32); the top of the return air pipe (30) is fixedly penetrated through the bottom inner wall of the box body (24) for injecting filtered air into the box body (24) and drying the damp raw materials.

5. The chemical production safety monitoring device according to claim 4, characterized in that: A plurality of insulating curtains (9) are fixed to the inner wall of the feed cover (6) on the side away from the closing plate (20), and the plurality of insulating curtains (9) cooperate to close the feed opening (7) to prevent dust inside the grinding box (1) from escaping to the outside through the feed opening (7). Two material guide inclined plates (41) are fixed inside the grinding box (1), and the two material guide inclined plates (41) are located above the crushing rollers (2) and are used to guide the raw materials to between the two crushing rollers (2).

6. The chemical production safety monitoring device according to claim 5, characterized in that: An explosion-proof dust detector (36) and an electrostatic detector (37) are fixedly passed through one side of the grinding box (1), and the explosion-proof dust detector (36) is used to detect the dust concentration inside the grinding box (1) in real time, and the electrostatic detector (37) is used to detect the static electricity inside the grinding box (1) in real time. A grounding copper rod (39) is fixedly passed through the bottom of the grinding box (1), and the bottom end of the grounding copper rod (39) contacts the ground, and is used to conduct the static electricity in the grinding box (1) to the ground.

7. The chemical production safety monitoring device according to claim 6, characterized in that: One end of each of the two crushing rollers (2) is rotated to extend to one side of the grinding box (1) and is fixed with a spur gear (3). The two spur gears (3) are meshed with each other. A drive motor (4) is fixed to one side of the grinding box (1) through a frame. The output shaft of the drive motor (4) is fixedly connected to the center of one of the spur gears (3) through a coupling. A protective shell (5) for protecting the spur gear (3) and the drive motor (4) is fixed to one side of the grinding box (1), and the protective shell (5) is located on a side of the grinding box (1) away from the placement plate (31). A discharge pipe (40) is fixed to one side of the grinding box (1) for discharging ground raw materials. A valve is provided on the discharge pipe (40).

8. The chemical production safety monitoring device according to claim 7, characterized in that: A plurality of fixed blocks (26) are fixed to inner walls of both sides of the box body (24) that are away from each other. A guide rod (27) is slidably inserted into each of the fixed blocks (26). The top ends of the guide rods (27) are fixedly connected to the bottom of the hollow plate (25). A spring (28) is fixed between the top of the fixed block (26) and the bottom of the box body (24). The spring (28) is sleeved on the outer wall of the guide rod (27). Two vertical rods (29) are fixed to the bottom of the hollow plate (25). The bottom ends of the two vertical rods (29) are slidably extended to the bottom of the box body (24). One end of the two crushing rollers (2) away from the spur gear (3) is rotated to extend to one side of the grinding box (1) and is fixed to a cam (38). The cam (38) cooperates with the vertical rod (29) to drive the hollow plate (25) to vibrate reciprocatingly up and down.

9. Chemical production safety monitoring equipment, characterized in that: Including the chemical production safety monitoring device as described in claim 8.

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