Purification and dust removal device for veterinary drug production

Abstract

The invention relates to the technical field of veterinary drug production, in particular to a purification and dust removal device for veterinary drug production, which comprises a mounting plate and a cabinet body, the lower surface of the mounting plate is fixedly connected with the upper surface of the cabinet body, the mounting plate is locked at the top of a production workshop through bolts, and the lower surface of the cabinet body is fixedly connected with a dust collection mechanism. Dust diffused into air in a workshop is absorbed through a dust collecting mechanism, a hanging frame is installed at the bottom end of the right side wall of the dust collecting mechanism, a tee joint is installed at the position, above the hanging frame, of the right side wall of the dust collecting mechanism, valves are installed on two branches of the tee joint, and a dust collecting cover is installed at the right end of the valve located on the rear side. And air in the production workshop is sucked in through the dust collection cover. The raw material packaging dust removal function is achieved, production environment pollution is reduced from the source, harm to respiratory tract health of workers during raw material carrying is avoided, the filter bag air permeability monitoring function is achieved, a draught fan is protected, a filter bag is cleaned or replaced in time, and dust removal of a production workshop is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of veterinary drug production, in particular to a purification and dust removal device for veterinary drug production. Background Art

[0002] Veterinary drugs: refers to substances (including drug feed additives) used to prevent, treat, diagnose animal diseases or purposefully regulate animal physiological functions. Veterinary drugs mainly include: serum products, vaccines, diagnostic products, microecological products, Chinese medicinal materials, Chinese patent medicines, chemical drugs, antibiotics, biochemical drugs, radioactive drugs, external pesticides, disinfectants, etc.

[0003] During the production process of veterinary drugs, such as raw material crushing, mixing, conveying, poor sealing during packaging, friction and extrusion of production equipment, etc., a large amount of dust and harmful substances will be generated. In order to ensure the health of staff and the quality of veterinary drugs, dust removal equipment should be used to remove dust from the production workshop. The filter bag dust collector has a large dust removal gas processing capacity and strong particle capture ability. It is the preferred dust removal equipment for veterinary drug production workshops.

[0004] If veterinary drugs are produced, raw materials need to be transported to the production workshop. There will be a lot of dust on the outer packaging of the raw materials, but the dust removal equipment cannot directly remove the dust on the outer packaging of the raw materials, which will increase the pollution of the production environment. The contact between the staff and the packaging will affect the health of the respiratory tract. After the filter bag is gradually saturated with dust, the air permeability decreases. If the filter bag is not cleaned in time, the fan is easy to burn out when it is no-load, which directly reduces the dust removal efficiency. Therefore, it is necessary to propose a purification and dust removal device for veterinary drug production with dust removal monitoring. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the outer packaging of raw materials transported to the production workshop cannot be directly dusted and the air permeability of the filter bag cannot be monitored. A purification and dust removal device for veterinary drug production is proposed.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: a purification and dust removal device for veterinary drug production, comprising a mounting plate and a cabinet, wherein the lower surface of the mounting plate is fixedly connected to the upper surface of the cabinet, the mounting plate is locked to the top of the production workshop by bolts, the lower surface of the cabinet is fixedly connected with a dust collecting mechanism, the dust diffused into the air in the workshop is absorbed by the dust collecting mechanism, a hanging bracket is installed at the bottom end of the right side wall of the dust collecting mechanism, a tee is installed above the hanging bracket on the right side wall of the dust collecting mechanism, valves are installed on both branches of the tee, a dust collecting hood is installed on the right end of the valve located at the rear side, and the dust collecting hood is used to collect dust. The air in the production workshop is sucked in, and a dust suction mechanism is installed at the right end of the valve located on the front side through a dust collecting pipe, and the dust suction mechanism is suspended on a bracket. The dust on the raw materials transported into the production workshop is cleaned by the dust suction mechanism. A fan, an adsorption mechanism and a dust collection monitoring mechanism are installed at the bottom of the inner cavity of the cabinet from left to right. The air inlet of the fan is connected to the left side of the adsorption mechanism through an air pipe, and the right side of the adsorption mechanism is connected to the top of the dust collection monitoring mechanism through an elbow. Under the action of the suction force of the fan, negative pressure is formed in the adsorption mechanism, and the bottom end of the dust collection monitoring mechanism is connected to the top of the right side wall of the dust collection mechanism through an elbow.

[0007] Preferably, the dust collecting mechanism includes a dust box, which is fixedly connected to the lower surface of the cabinet, and an alarm light and a controller are respectively installed at the upper and lower ends of the front side of the dust box door, and the controller is electrically connected to the fan and the alarm light. A dust bucket is screwed to the bottom of the dust box, and dust particles are collected through the dust bucket. A partition is horizontally installed at the bottom of the inner cavity of the dust box, and the partition has a plurality of through holes from left to right, and a filter bag holder is vertically installed on the top of the partition through hole, and a filter bag is installed on the outer wall of the filter bag holder. The filter bag holder prevents the filter bag from deforming, and the filter bag filters out dust particles in the gas.

[0008] Preferably, the dust suction mechanism includes a handle, the front end of the handle is connected to the valve located on the front side through a dust collecting pipe, and the handle is hollow so that gas can flow in the inner cavity of the handle, an air suction hood is installed at the rear end of the handle, and the rear side of the air suction hood is arc-shaped so that the air suction hood can move along the outer wall of the curved packaging barrel containing raw materials, and a plurality of air inlet grooves are equidistantly provided on the rear side of the air suction hood from top to bottom, through which gas enters the air suction hood and removes dust on the surface of the packaging barrel, positioning components are installed on the left end of the upper surface of the air suction hood and the bottom of the inner wall, and a deformation component is connected to the top of the rear side of the air suction hood through a hinge, and the deformation component is fixed to the air suction hood through the positioning component when the deformation component is closed; the air suction hood moves along the barrel packaging surface through the curved surface, and removes dust on the barrel packaging surface under the air intake condition of the air suction hood.

[0009] Preferably, the positioning assembly includes an insertion rod, and the two insertion rods of the positioning assemblies are respectively installed on the left end of the upper surface of the air intake hood and the bottom of the inner wall, and the insertion rod is hollow. A plurality of balls are equidistantly inserted along the circumferential direction on the side of the outer wall of the insertion rod in contact with the deformation assembly, and a spring and a thrust head are respectively inserted in the inner cavity of the insertion rod, and the thrust head is pushed to move under the action of the spring elastic force, and the end of the thrust head close to the ball is conical.

[0010] Preferably, the deformation component is connected to two baffles at the left and right ends of the top rear side of the air suction hood through hinges, and the baffles can be completely fitted with the rear side of the air suction hood, and the baffles form a plane on the rear side of the air suction hood, so that the air suction hood can vacuum the rectangular raw material packaging box, and a number of wedges that can be plugged into the air inlet groove are equidistantly installed on the lower surface of the baffle, and reinforcing ribs are installed between the baffles, and a positioning hole that can be sleeved on the outer wall of the insertion rod is opened in the middle part of the reinforcement rib, and the baffle is positioned by a ball bearing stuck on the outer wall of the reinforcement rib; the insertion rod is inserted into the positioning hole, and the ball bearing is stuck on the outer wall of the reinforcement rib to position the baffle, so that the rear side of the air suction hood is flat, and the air suction hood can be moved along the surface of the box packaging to remove dust from the box packaging.

[0011] Preferably, the upper surface of the baffle is serrated.

[0012] Preferably, the adsorption mechanism includes a filter box, and an air dispersion hood is installed on the right side wall of the filter box, which can disperse the gas into the filter box. A number of blocks are installed on the upper and lower inner walls of the filter box at equal distances from left to right. Activated carbon adsorption plates are inserted into the inner cavity of the filter box from left to right, and the activated carbon adsorption plates are separated by blocks, so that the activated carbon adsorption plates are used to adsorb harmful substances in the gas.

[0013] Preferably, the dust collection monitoring mechanism includes a pipe sleeve vertically mounted on the right end of the bottom of the cabinet body cavity, the top of the pipe sleeve is connected to the right end of the air hood through an air pipe, and the bottom end of the pipe sleeve is connected to the top of the right wall of the dust collection box through an elbow, a box body is transversely mounted on the left side wall of the pipe sleeve, and air inlet holes are provided in the middle of the upper and lower surfaces of the box body, a piston that can move left and right is inserted in the box body cavity, and the box body cavity is closed by the piston, a T-shaped flow channel is provided inside the piston, and when the flow channel is connected to the air inlet hole, gas can enter the pipe sleeve, a pull rod is transversely inserted in the middle of the left side wall of the box body, and the right end of the pull rod is installed with the left end of the piston, a rack is embedded in the bottom of the pull rod, and a pull ring is installed on the left end of the pull rod, and a rotating shaft that can rotate around its own axis is installed at the lower left corner of the box body cavity through a bearing. A cam and a gear are respectively installed at the front and rear ends of the outer wall of the rotating shaft, and the gear is meshed with the rack. The rotating shaft is driven to rotate counterclockwise under the action of the gravity of the cam. When the piston moves to the right under the action of the suction of the fan, the rack can drive the gear to rotate clockwise. A circular arc-shaped limit groove is provided on the front side of the gear. A limit rod connected with the inner cavity of the limit groove is installed along the front and rear directions on the rear side of the inner cavity of the box body, and the limit rod is electrically connected to the controller. The rotation angle of the gear is limited by the cooperation of the limit groove and the limit rod. A contact is installed at the end of the limit groove away from the limit rod, and the contact is electrically connected to the controller. The piston is moved to the right through the suction of the fan, and the cam is rotated clockwise under the transmission of the rack and the gear. When the limit rod contacts the contact, the alarm light is turned on to alarm, reminding the staff that the filter bag needs to be cleaned or replaced.

[0014] Preferably, the left and right sides of the limiting groove are symmetrical relative to the center point of the gear.

[0015] Preferably, when the gear and the rack are in transmission, the maximum distance the rack moves can enable the flow channel to reach the air inlet.

[0016] The beneficial effects of the present invention are: 1. The present invention can move on the surface of barrel packaging through the curved surface of the suction hood itself to absorb dust from the outer surface of the barrel packaging, rotate the baffle to fit the suction hood, insert the wedge into the air inlet groove, insert the rod into the positioning hole, push the propulsion head under the action of the spring elastic force, and the inclined surface of the propulsion head squeezes the ball outward. The ball is stuck on the outer wall of the reinforcing rib and fixes the baffle to form a plane on the rear side of the suction hood. The suction hood can move on the outer packaging surface of boxes and absorb dust from the surface of boxes. Therefore, it has the function of dust removal for raw material packaging, reduces production environment pollution from the source, and avoids damage to the respiratory health of workers when transporting raw materials.

[0017] 2. The present invention uses the filter bag whose air permeability cannot meet the unit air volume of the fan. The fan suction will cause the piston to move to the right, and at the same time, the pull rod will move to the right. The cam rotates clockwise under the transmission of the rack and gear. When the cam tilts to the right, the cam continues to rotate clockwise until the limit rod contacts the contact, the flow channel is connected to the air inlet, and the alarm light lights up to alarm. The filter bag has the function of monitoring air permeability, protecting the fan, and allowing the filter bag to be cleaned or replaced in time without affecting the dust removal in the production workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Main cross-sectional view of the middle dust collection mechanism; Figure 3 for Figure 1 Right view of the middle dust collection mechanism; Figure 4 for Figure 3 Exploded view of the positioning component; Figure 5 for Figure 1 Schematic diagram of the adsorption mechanism structure; Figure 6 for Figure 1 Schematic diagram of the structure of the dust collection monitoring mechanism; Figure 7 for Figure 6 Main cross-sectional view of the middle dust collection mechanism; Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0019] In the figure: 1, mounting plate; 2, cabinet; 3, dust collection mechanism; 4, bracket; 5, three-way; 6, valve; 7, dust hood; 8, dust suction mechanism; 9, fan; 10, adsorption mechanism; 11, dust monitoring mechanism; 31, dust box; 32, alarm light; 33, controller; 34, dust bucket; 35, partition; 36, filter bag rack; 37, filter bag; 81, handle; 82, suction hood; 83, air inlet slot; 84, positioning component; 85, deformation component; 841, plug rod; 842, ball; 843, spring; 8 44. Propelling head; 851. Baffle; 852. Wedge; 853. Reinforcing rib; 854. Positioning hole; 101. Filter box; 102. Diffusion hood; 103. Baffle; 104. Activated carbon adsorption plate; 111. Pipe sleeve; 112. Box body; 113. Air inlet; 114. Piston; 115. Flow channel; 116. Pull rod; 117. Rack; 118. Pull ring; 119. Rotating shaft; 1110. Cam; 1111. Gear; 1112. Limiting groove; 1113. Limiting rod; 1114. Contact. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the preferred embodiments of the present invention are further described below in conjunction with specific implementation methods and accompanying drawings.

[0021] See also Figure 1-Figure 8 The present invention provides a purification and dust removal device for veterinary drug production, including a mounting plate 1 and a cabinet 2. The lower surface of the mounting plate 1 is fixedly connected to the upper surface of the cabinet 2. The mounting plate 1 is locked on the top of the production workshop by bolts. The lower surface of the cabinet 2 is fixedly connected with a dust collecting mechanism 3. The dust diffused into the air in the workshop is absorbed by the dust collecting mechanism 3. A hanging rack 4 is installed at the bottom end of the right side wall of the dust collecting mechanism 3. A tee 5 is installed above the hanging rack 4 on the right side wall of the dust collecting mechanism 3. Valves 6 are installed on both branches of the tee 5. A dust collecting hood 7 is installed on the right end of the valve 6 located at the rear side. The air in the production workshop is sucked in through the dust collecting hood 7. A dust collecting hood 7 and a valve 6 can be installed between the dust collecting hood 7 and the valve 6. The telescopic tube changes the dust suction height of the dust collecting hood 7. The right end of the valve 6 located on the front side is equipped with a dust collecting mechanism 8 through the dust collecting pipe, and the dust collecting mechanism 8 is suspended on the bracket 4. The dust on the raw materials transported into the production workshop is cleaned by the dust collecting mechanism 8. The bottom of the inner cavity of the cabinet 2 is respectively equipped with a fan 9, an adsorption mechanism 10 and a dust collecting monitoring mechanism 11 from left to right. The air inlet of the fan 9 is connected to the left side of the adsorption mechanism 10 through an air pipe, and the right side of the adsorption mechanism 10 is connected to the top of the dust collecting monitoring mechanism 11 through an elbow. Under the suction force of the fan 9, a negative pressure is formed in the adsorption mechanism 10, and the bottom end of the dust collecting monitoring mechanism 11 is connected to the top of the right side wall of the dust collecting mechanism 3 through an elbow.

[0022] As a preferred embodiment, further, the dust collecting mechanism 3 includes a dust box 31, which is fixedly connected to the lower surface of the cabinet 2. An alarm light 32 and a controller 33 are respectively installed at the upper and lower ends of the front side of the door of the dust box 31, and the controller 33 is electrically connected to the fan 9 and the alarm light 32. The fan 9 is started and stopped by the controller 33. A dust bucket 34 is screwed to the bottom of the dust box 31, and dust particles are collected by the dust bucket 34. A partition 35 is horizontally installed at the bottom of the inner cavity of the dust box 31, and the partition 35 has a plurality of through holes from left to right. A filter bag holder 36 is vertically installed on the top of the through hole of the partition 35, and a filter bag 37 is installed on the outer wall of the filter bag holder 36. The filter bag holder 36 prevents the filter bag 37 from deforming, and the filter bag 37 filters out dust particles in the gas.

[0023] As a preferred embodiment, further, the dust suction mechanism 8 includes a handle 81, the front end of the handle 81 is connected to the valve 6 located on the front side through a dust collecting pipe, and the handle 81 is hollow so that the inner cavity of the handle 81 can allow gas to flow, and an air suction hood 82 is installed at the rear end of the handle 81, and the rear side of the air suction hood 82 is arc-shaped, so that the air suction hood 82 can move along the outer wall of the curved packaging barrel containing raw materials, and a plurality of air inlet grooves 83 are equidistantly provided on the rear side of the air suction hood 82 from top to bottom, and gas enters the air suction hood 82 through the air inlet grooves 83, and the dust on the surface of the packaging barrel is taken away by the gas, and a positioning assembly 84 is installed on the left end of the upper surface of the air suction hood 82 and the bottom of the inner wall, and a deformation assembly 85 is connected to the top of the rear side of the air suction hood 82 through a hinge, and the deformation assembly 85 and the air suction hood 82 are fixed by the positioning assembly 84 when they are closed.

[0024] As a preferred embodiment, further, the positioning component 84 includes an insertion rod 841. The insertion rods 841 on the two positioning components 84 are respectively installed on the left end of the upper surface of the air hood 82 and the bottom of the inner wall, and the insertion rod 841 is hollow. A plurality of balls 842 are equidistantly inserted along the circumferential direction on the side where the outer wall of the insertion rod 841 contacts the deformation component 85. A spring 843 and a push head 844 are respectively inserted into the inner cavity of the insertion rod 841. The end of the push head 844 close to the ball 842 is conical. Under the action of the elastic force of the spring 843, the push head 844 is pushed to move. The inclined surface of the push head 844 squeezes the ball 842 outward, allowing the ball 842 to extend from the insertion rod 841.

[0025] As a preferred solution, further, the deformation component 85 is connected to the two baffles 851 at the left and right ends of the top rear side of the air hood 82 through a hinge, and the baffle 851 can be completely fitted with the rear side of the air hood 82, and the baffle 851 forms a plane on the rear side of the air hood 82. The upper surface of the baffle 851 is serrated. When the baffle 851 moves along the surface of the raw material outer packaging, the gap between the serrations allows air to enter and take away the dust on the surface of the outer packaging. A number of wedge blocks 852 that can be plugged into the air inlet groove 83 are equidistantly installed on the lower surface of the baffle 851, and reinforcing ribs 853 are installed between the baffles 851. A positioning hole 854 that can be sleeved on the outer wall of the insertion rod 841 is opened in the middle of the reinforcing rib 853, and the baffle 851 is positioned by the ball 842 stuck on the outer wall of the reinforcing rib 853.

[0026] As a preferred embodiment, the adsorption mechanism 10 further includes a filter box 101, and a gas diffusion hood 102 is installed on the right side wall of the filter box 101. The gas diffusion hood 102 can disperse the gas into the filter box 101. A plurality of blocks 103 are installed on the upper and lower inner walls of the filter box 101 at equal distances from left to right. Activated carbon adsorption plates 104 are inserted into the inner cavity of the filter box 101 from left to right, and the activated carbon adsorption plates 104 are separated by blocks 103, and the activated carbon adsorption plates 104 are used to adsorb harmful substances in the gas.

[0027] As a preferred solution, further, the dust collection monitoring mechanism 11 includes a pipe sleeve 111 vertically mounted on the right end of the bottom of the inner cavity of the cabinet 2, the top of the pipe sleeve 111 is connected to the right end of the diffuser hood 102 through an air pipe, and the bottom of the pipe sleeve 111 is connected to the top of the right wall of the dust box 31 through an elbow, and a box body 112 is horizontally installed on the left wall of the pipe sleeve 111, and air inlet holes 113 are opened in the middle of the upper and lower surfaces of the box body 112, and a piston 114 that can move left and right is inserted into the inner cavity of the box body 112, and the inner cavity of the box body 112 is closed by the piston 114, and a T-shaped The flow channel 115 is connected with the air inlet 113 to allow gas to enter the pipe sleeve 111. A pull rod 116 is inserted horizontally in the middle of the left side wall of the box body 112, and the right end of the pull rod 116 is installed with the left end of the piston 114. A rack 117 is embedded in the bottom of the pull rod 116, and a pull ring 118 is installed on the left end of the pull rod 116. A rotating shaft 119 that can rotate around its own axis is installed at the lower left corner of the inner cavity of the box body 112 through a bearing. Cams 1110 and gears 1111 are installed at the front and rear ends of the outer wall of the rotating shaft 119, and the gear 1111 is meshed and connected with the rack 117. When the piston 114 moves to the right under the suction of the fan 9, the rack 117 can drive the gear 1111 to rotate clockwise. The front of the gear 1111 is provided with an arc-shaped limit groove 1112. The left and right sides of the limit groove 1112 are symmetrical with respect to the center point of the gear 1111, so that the cam 1110 can rotate from the left to the right, so that the gravity of the cam 1110 can provide both clockwise and counterclockwise rotation power for the gear 1111. When the gear 1111 and the rack 117 are in transmission, the maximum distance that the rack 117 moves can make the flow channel 115 reach the air inlet hole. 113, the end point of the rightward movement of the piston 114 just connects the flow channel 115 with the air inlet 113, avoiding the fan 9 from being idling, thereby protecting the fan 9. A limit rod 1113 is installed on the rear side of the inner cavity of the box body 112 along the front-to-back direction and is plugged into the inner cavity of the limit groove 1112, and the limit rod 1113 is electrically connected to the controller 33. The limit groove 1112 cooperates with the limit rod 1113 to limit the rotation angle of the gear 1111, and a contact 1114 is installed at one end of the limit groove 1112 away from the limit rod 1113, and the contact 1114 is electrically connected to the controller 33.

[0028] Working principle: Step 1: A passage is formed between the air hood 102, the pipe sleeve 111, and the dust box 31. The suction force generated by the fan 9 allows the air in the production workshop to enter from the dust hood 7. When the air reaches the filter bag 37, the filter bag 37 filters the air and blocks the dust particles in the filter bag 37. The purified air passes through the pipe sleeve 111 and reaches the air hood 102. The air hood 102 allows the gas to disperse and pass through the activated carbon adsorption plate 104. The activated carbon adsorption plate 104 adsorbs harmful substances in the air. Finally, the air is discharged from the air outlet of the fan 9 to achieve air dust removal in the production workshop. Step 2: When it is necessary to remove dust from the outer packaging of raw materials entering the production workshop, close the valve 6 of the dust hood 7, open the valve 6 of the dust collection mechanism 8, remove the handle 81 from the hanger 4, and when removing dust from the curved barreled raw materials, hold the handle 81 and move the suction hood 82 close to the packaging barrel, and the gas enters the suction hood 82 from the air inlet groove 83. During the flow of gas, the dust on the surface of the packaging barrel is taken away. When removing dust from rectangular box packaging, the baffle 851 is fitted with the suction hood 82, and the wedge 85 is pressed against the suction hood 82. 2 is inserted into the air inlet groove 83, the insertion rod 841 is inserted into the positioning hole 854 on the reinforcing rib 853, and the push head 844 is pushed under the elastic force of the spring 843. The inclined surface of the push head 844 squeezes the ball 842 outward, so that the ball 842 is stuck on the outer wall of the reinforcing rib 853, and the reinforcing rib 853 is positioned so that the air hood 82 has a horizontal surface. The baffle 851 moves along the surface of the packaging box to achieve dust removal of the box packaging. Therefore, the outer packaging of the raw materials entering the production workshop can be dusted; Step three, when it is necessary to monitor the air permeability of the filter bag 37, as the dust on the inner wall of the filter bag 37 gradually increases, the air permeability decreases. Once the air permeability does not match the air intake volume of the fan 9, the suction force on the piston 114 increases, and the piston 114 moves to the right along the inner wall of the box body 112, prompting the pull rod 116 to move right with the piston 114, and the cam 1110 rotates clockwise under the transmission of the rack 117 and the gear 1111. When the cam 1110 tilts to the right, the piston 114 continues to move to the right under the dual power of the cam 1110 and the fan 9 until the contact 1114 contacts the limit rod 1113, forming a closed loop with the controller 33, and the flow channel 115 is connected with the air inlet 113, allowing air to move along the flow channel 115 to the fan 9. The controller 33 controls the fan 9 to stop working, and the alarm light 32 lights up at the same time to remind the staff that they need to clean or replace the filter bag 37 to prevent dust removal interruption.

[0029] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A purification and dust removal device for veterinary drug production, comprising a mounting plate (1) and a cabinet (2), wherein the lower surface of the mounting plate (1) is fixedly connected to the upper surface of the cabinet (2), and the mounting plate (1) is fastened to the top of the production workshop by bolts, characterized in that: A dust collecting mechanism (3) is fixedly connected to the lower surface of the cabinet (2), and dust diffused into the air in the workshop is absorbed by the dust collecting mechanism (3). A hanging bracket (4) is installed at the bottom end of the right side wall of the dust collecting mechanism (3). A tee (5) is installed on the right side wall of the dust collecting mechanism (3) above the hanging bracket (4). Both branches of the tee (5) are installed with valves (6). A dust collecting hood (7) is installed at the right end of the valve (6) located at the rear side, and air in the production workshop is sucked in through the dust collecting hood (7). A dust collecting mechanism (8) is installed at the right end of the valve (6) located at the front side through a dust collecting pipe, and the dust collecting mechanism (8) ) is hung on a hanger (4), and dust on raw materials transported into the production workshop is cleaned by a dust suction mechanism (8). A fan (9), an adsorption mechanism (10) and a dust collection monitoring mechanism (11) are installed from left to right at the bottom of the inner cavity of the cabinet (2). The air inlet of the fan (9) is connected to the left side of the adsorption mechanism (10) through an air pipe, and the right side of the adsorption mechanism (10) is connected to the top of the dust collection monitoring mechanism (11) through an elbow. Under the suction force of the fan (9), a negative pressure is formed in the adsorption mechanism (10). The bottom end of the dust collection monitoring mechanism (11) is connected to the top of the right side wall of the dust collection mechanism (3) through an elbow.

2. A purification and dust removal device for veterinary drug production according to claim 1, characterized in that: The dust collecting mechanism (3) comprises a dust collecting box (31), the dust collecting box (31) being fixedly connected to the lower surface of the cabinet (2), an alarm light (32) and a controller (33) being respectively installed at the upper and lower ends of the front side of the door of the dust collecting box (31), and the controller (33) being electrically connected to the fan (9) and the alarm light (32), a dust collecting bucket (34) being screwed to the bottom of the dust collecting box (31), and dust particles are collected by the dust collecting bucket (34), a partition (35) being transversely installed at the bottom of the inner cavity of the dust collecting box (31), and the partition (35) having a plurality of through holes from left to right, a filter bag holder (36) being vertically installed at the top of the through holes of the partition (35), a filter bag (37) being installed on the outer wall of the filter bag holder (36), the filter bag holder (36) preventing the filter bag (37) from being deformed, and the filter bag (37) filtering out dust particles in the gas.

3. A purification and dust removal device for veterinary drug production according to claim 2, characterized in that: The dust collecting mechanism (8) comprises a handle (81), the front end of the handle (81) being connected to a valve (6) located at the front side via a dust collecting pipe, and the handle (81) being hollow so that the inner cavity of the handle (81) can allow gas to flow, an air suction hood (82) being installed at the rear end of the handle (81), and the rear side of the air suction hood (82) being arc-shaped so that the air suction hood (82) can move along the outer wall of a curved packaging barrel containing raw materials, a plurality of air inlet grooves (83) being equidistantly provided at the rear side of the air suction hood (82) from top to bottom, allowing gas to enter the air suction hood (82) through the air inlet grooves (83), and removing dust on the surface of the packaging barrel through the air, a positioning assembly (84) being installed at the left end of the upper surface of the air suction hood (82) and the bottom of the inner wall, and a deformation assembly (85) being connected to the top of the rear side of the air suction hood (82) via a hinge, and the deformation assembly (85) and the air suction hood (82) being fixed by the positioning assembly (84) when they are closed.

4. A purification and dust removal device for veterinary drug production according to claim 3, characterized in that: The positioning assembly (84) comprises an insertion rod (841), and the insertion rods (841) of the two positioning assemblies (84) are respectively mounted on the left end of the upper surface of the suction hood (82) and the bottom of the inner wall, and the insertion rod (841) is hollow. A plurality of balls (842) are inserted equidistantly along the circumferential direction on the side of the outer wall of the insertion rod (841) in contact with the deformation assembly (85). A spring (843) and a push head (844) are respectively inserted into the inner cavity of the insertion rod (841). The push head (844) is pushed to move under the elastic force of the spring (843), and one end of the push head (844) close to the ball (842) is conical.

5. A purification and dust removal device for veterinary drug production according to claim 4, characterized in that: The deformation component (85) is connected to two baffles (851) at the left and right ends of the top rear side of the suction hood (82) through hinges, and the baffles (851) can be completely fitted with the rear side of the suction hood (82). The baffles (851) form a plane on the rear side of the suction hood (82), so that the suction hood (82) can vacuum the rectangular raw material packaging box. A plurality of wedges (852) that can be plugged into the air inlet groove (83) are equidistantly installed on the lower surface of the baffle (851). Reinforcing ribs (853) are installed between the baffles (851). A positioning hole (854) that can be sleeved on the outer wall of the insertion rod (841) is opened in the middle of the reinforcing rib (853). The baffle (851) is positioned by a ball bearing (842) that is clamped on the outer wall of the reinforcing rib (853).

6. A purification and dust removal device for veterinary drug production according to claim 5, characterized in that: The upper surface of the baffle (851) is in a sawtooth shape.

7. A purification and dust removal device for veterinary drug production according to claim 6, characterized in that: The adsorption mechanism (10) comprises a filter box (101), a gas diffusion hood (102) is installed on the right side wall of the filter box (101), and the gas diffusion hood (102) can disperse gas into the filter box (101); a plurality of blocks (103) are installed on the upper and lower inner walls of the filter box (101) at equal distances from left to right; activated carbon adsorption plates (104) are inserted into the inner cavity of the filter box (101) from left to right, and the activated carbon adsorption plates (104) are separated by the blocks (103); and the activated carbon adsorption plates (104) are used to adsorb harmful substances in the gas.

8. A purification and dust removal device for veterinary drug production according to claim 7, characterized in that: The dust collection monitoring mechanism (11) comprises a pipe sleeve (111) vertically mounted on the right end of the bottom of the inner cavity of the cabinet (2); the top of the pipe sleeve (111) is connected to the right end of the air diffuser (102) via an air pipe, and the bottom of the pipe sleeve (111) is connected to the top of the right side wall of the dust collection box (31) via an elbow; a box body (112) is horizontally mounted on the left side wall of the pipe sleeve (111); the middle of the upper and lower surfaces of the box body (112) are provided with air inlet holes (113); the inner cavity of the box body (112) is plugged with a piston (114) that can move left and right, and the piston (114) that can move left and right is inserted into the inner cavity of the box body (112) through The piston (114) closes the inner cavity of the box body (112). A T-shaped flow channel (115) is provided inside the piston (114). When the flow channel (115) is connected to the air inlet (113), gas can enter the pipe sleeve (111). A pull rod (116) is inserted transversely into the middle of the left side wall of the box body (112), and the right end of the pull rod (116) is installed with the left end of the piston (114). A rack (117) is embedded in the bottom of the pull rod (116). A pull ring (118) is installed at the left end of the pull rod (116). The box body (112) is provided with a plurality of pull rods (116). 2) A rotating shaft (119) capable of rotating about its own axis is installed at the lower left corner of the inner cavity through a bearing, and a cam (1110) and a gear (1111) are installed at the front and rear ends of the outer wall of the rotating shaft (119), respectively, and the gear (1111) is meshed and connected with the rack (117). Under the action of the gravity of the cam (1110), the rotating shaft (119) is driven to rotate counterclockwise. When the piston (114) moves to the right under the suction of the fan (9), the rack (117) can drive the gear (1111) to rotate clockwise. The front side of the gear (1111) is open. A circular arc-shaped limiting groove (1112) is provided, and a limiting rod (1113) plugged into the inner cavity of the limiting groove (1112) is installed on the rear side of the inner cavity of the box body (112) along the front-to-back direction, and the limiting rod (1113) is electrically connected to the controller (33). The limiting groove (1112) and the limiting rod (1113) cooperate to limit the rotation angle of the gear (1111), and a contact (1114) is installed at one end of the limiting groove (1112) away from the limiting rod (1113), and the contact (1114) is electrically connected to the controller (33).

9. A purification and dust removal device for veterinary drug production according to claim 8, characterized in that: The left and right sides of the limiting groove (1112) are symmetrical relative to the center point of the gear (1111).

10. A purification and dust removal device for veterinary drug production according to claim 9, characterized in that: When the gear (1111) and the rack (117) are in transmission, the maximum distance that the rack (117) moves can enable the flow channel (115) to reach the air inlet (113).

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