Feeding dustproof mechanism of extraction tank

Abstract

The utility model discloses a feeding dustproof mechanism of an extraction tank, which comprises a feeding bin, the bottom of the feeding bin is fixedly connected with a feeding cylinder, the feeding bin is fixedly connected with the extraction tank through the feeding cylinder, and a dust removal component is assembled between the feeding bin and the extraction tank. The negative pressure pipe is respectively connected with the main connecting pipe and the extraction tank, and before feeding, air in the extraction tank is driven by the negative pressure pipe to flow outwards, so that the pressure in the extraction tank cannot be increased in the process of subsequently feeding materials into the extraction tank through the feeding bin, and the materials can directly enter the extraction tank; the air flow in the extraction tank does not carry dust into the feeding cylinder and the feeding bin to generate reflux, so that the feeding cylinder can be protected, the blockage caused by dust accumulation in the feeding cylinder is avoided, and the influence on the ambient environment in a workshop due to dust overflow from the feeding bin can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of traditional Chinese medicine processing, in particular to a feeding dust prevention mechanism of an extraction tank. Background Art

[0002] The extraction tank is a common equipment for leaching and extracting the components contained in plants in the pharmaceutical and chemical industries. In the process of extracting materials through the extraction tank, the material is put into the feeding bin, and the material passes through the feeding tube by its own weight and enters the extraction tank. In this process, the dust suction fan connected to the feeding bin will start to suck away the dust generated in the feeding process in the feeding bin for centralized treatment, so as to avoid a large amount of dust from the feeding bin spreading to the feeding workshop, which will pollute the health of the feeding personnel and the environment in the workshop.

[0003] When the material is fed into the extraction tank by the above-mentioned feeding method, the pressure in the extraction tank will rise during the process of the material entering the extraction tank. After the pressure in the extraction tank rises, it will squeeze the airflow in the extraction tank and push it back into the feeding bin. The reverse-flowing airflow will carry dust from the feeding tube into the feeding bin. When the airflow carrying dust passes through the feeding tube, some dust will invade the gap between the two sections of the feeding tube. The dust in the gap will harden after expansion and contraction, which will cause the expansion and contraction of the feeding tube to get stuck, or even get stuck, affecting the feeding production. The remaining dust may flow back into the feeding bin, so that the dust cannot be sucked away by the dust suction fan in time, which will affect the health of the feeding personnel and the environment in the feeding workshop. To this end, we propose a feeding dust prevention mechanism for the extraction tank. Utility Model Content

[0004] The utility model aims to provide a feeding dust prevention mechanism for an extraction tank to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding dust prevention mechanism for an extraction tank, comprising a feeding bin, a feeding cylinder is fixedly connected to the bottom of the feeding bin, the feeding bin is fixedly connected to the extraction tank through the feeding cylinder, and a dust removal component is installed between the feeding bin and the extraction tank;

[0006] The dust removal assembly includes a main connecting pipe, one end of which is connected to the inner cavity of the feeding bin, the other end of which is fixedly connected to a dust suction fan, the side wall of the main connecting pipe is fixedly connected to one end of a negative pressure pipe, and the other end of the negative pressure pipe is fixedly connected to the top of the extraction tank.

[0007] Preferably, a first control valve and a second control valve are fixedly installed in the main connecting pipe and the negative pressure pipe respectively.

[0008] Preferably, a filter assembly is fixedly installed in the main connecting pipe, and the filter assembly includes a filter tube. An assembly groove is opened at the bottom of the filter tube, and a mounting frame is installed in the assembly groove. The mounting frame and the inner cavity of the filter tube are respectively fixedly installed with a clamping frame, and a filter net is clamped in the clamping frame.

[0009] Preferably, the mounting frame and the filter tube are detachably fixedly assembled via fixing bolts and fixing nuts.

[0010] Preferably, the number of the filter screens is at least two groups, the number of the snap-on frames matches the number of the filter screens, and the two groups of filter frames are evenly distributed from front to back.

[0011] Compared with the prior art, the beneficial effects of the utility model are: a feeding dust prevention mechanism for an extraction tank. Compared with the traditional method of dust removal for a feeding bin, the device is provided with a negative pressure pipe on the side wall of the main connecting pipe connected to the feeding bin, and the negative pressure pipe is respectively connected to the main connecting pipe and the extraction tank. Before feeding, the air in the extraction tank is driven to flow outward by the negative pressure pipe, so that the pressure in the extraction tank will not increase during the subsequent feeding of materials into the extraction tank through the feeding bin, and the material will directly enter the extraction tank. The airflow in the extraction tank will not carry dust to the feeding barrel and the feeding bin to produce backflow, thereby protecting the feeding barrel and avoiding dust accumulation in the feeding barrel to cause jamming, and avoiding dust overflow from the feeding bin to affect the surrounding environment in the workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a three-dimensional diagram of the filter assembly of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the filter assembly of the utility model.

[0015] In the figure: 1. feeding bin; 2. feeding cylinder; 3. extraction tank; 4. dust removal assembly; 41. main connecting pipe; 42. dust suction fan; 43. negative pressure pipe; 44. first control valve; 45. second control valve; 5. filter assembly; 51. filter tube; 52. assembly groove; 53. mounting frame; 54. clamping frame; 55. filter net. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] Embodiment 1

[0018] See also Figure 1 The utility model provides a technical solution: a feeding dust prevention mechanism for an extraction tank, comprising a feeding bin 1, the feeding bin 1 is fixedly assembled in a feeding workshop, a feeding cylinder 2 penetrating into the extraction workshop is fixedly connected to the bottom of the feeding bin 1, the bottom of the feeding cylinder 2 is connected to the extraction tank 3, the feeding bin 1 is connected to the extraction tank 3 through the feeding cylinder 2, the feeding cylinder 2 adopts a telescopic feeding cylinder in the prior art, and the medicinal materials to be processed can be fed into the extraction tank 3 through the feeding bin 1 and the feeding cylinder 2;

[0019] A dust removal component 4 connected to the feeding bin 1 is fixedly installed in the feeding workshop. The dust removal component 4 can absorb the dust generated during the feeding process, thereby reducing the dust from the feeding bin 1 to the surrounding environment and reducing the dust pollution to the environment in the feeding workshop;

[0020] The dust removal component 4 includes a main connecting pipe 41, one end of which is fixedly connected to the inner cavity of the feeding bin 1, and the other end of the main connecting pipe 41 is fixedly connected to a dust suction fan 42. The side wall of the main connecting pipe 41 is fixedly connected to one end of a negative pressure pipe 43, and the other end of the negative pressure pipe 43 passes through the inner cavity of the extraction tank 3. By setting a negative pressure pipe 43 connected to the main connecting pipe 41, when the dust suction fan 42 performs dust removal on the feeding process in the feeding bin 1 through the main connecting pipe 41, the air in the inner cavity of the extraction tank 3 can be sucked out through the negative pressure pipe 43, so that the extraction tank 3 is in a negative pressure state, ensuring that the material fed from the feeding cylinder 2 to the extraction tank 3 can fall smoothly, and can also solve the problem that the dust generated by the excessive instantaneous pressure in the extraction tank 3 during feeding is reversed with the gas to the feeding cylinder 2 and the feeding bin 1, causing dust pollution to the feeding cylinder 2 and the feeding bin 1;

[0021] The main connecting pipe 41 and the negative pressure pipe 43 are respectively fixedly equipped with a first control valve 44 and a second control valve 45, which are pneumatic air valves. The first control valve 44 and the second control valve 45 are respectively arranged to control the connection and closing of the main connecting pipe 41, the negative pressure pipe 43 with the feeding bin 1 and the extraction tank 3.

[0022] Working principle: Compared with the traditional dust removal device for the feeding bin 1, this device is equipped with a negative pressure pipe 43. When it is necessary to feed materials from the feeding bin 1 to the extraction workshop, first turn on the dust suction fan 42, the first control valve 44 and the second control valve 45. When the dust suction fan 42 is turned on, suction is generated through the main connecting pipe 41 and the negative pressure pipe 43 respectively. While the negative pressure pipe 43 sucks the air in the extraction tank 3 outward, the external air is replenished from the feeding tube 2 and the feeding bin 1. At this time, the material is fed into the extraction tank 3 through the feeding bin 1 and the feeding tube 2. The main connecting pipe 41 absorbs the dust generated during the feeding process. The material entering the feeding bin 1 can enter the extraction tank 3 more quickly according to the flow of air. The present device can effectively reduce the dust overflow caused by the reverse flow of gas in the extraction tank 3 when the material is fed into the extraction tank 3, enhance the dust removal effect of the feeding bin 1 and protect the feeding tube 2.

[0023] Embodiment 2

[0024] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a technical solution which is different from the technical solution in the first embodiment in that: a filter assembly 5 is installed in the main connecting pipe 41, and the filter assembly 5 includes a filter tube 51. The front and rear ends of the filter tube 51 are respectively provided with connecting flanges. The filter tube 51 is connected and fixed to the main connecting pipe 41 through the provided connecting flanges. An assembly groove 52 is provided at the bottom of the filter tube 51. A mounting frame 53 is installed in the assembly groove 52. The filter tube 51 and the mounting frame 53 are detachably fixed and assembled by fixing bolts and fixing nuts. The mounting frame 53 and the inner side wall of the filter tube 51 are welded and fixed with a clamping frame 54 which is symmetrically distributed in the upper and lower parts. A filter screen 55 is clamped and fixed in the clamping frame 54.

[0025] There are at least two groups of filters 55, which are distributed from front to back. The filters 55 are arranged to partially filter the dust in the gas entering the dust suction fan 42 through the main connecting pipe 41, thereby preventing a large volume of dust from entering the dust suction fan 42, reducing the workload of the dust suction fan 42, and providing certain protection for the dust suction fan 42 to increase its service life. At the same time, a detachable fixed assembly method is adopted between the mounting frame 53 and the filter tube 51, so that the mounting frame 53 can be disassembled to facilitate cleaning and maintenance of the filter 55 inside it. By regularly cleaning and maintaining the filter 55, the suction force of the main connecting pipe 41 and the negative pressure pipe 43 is prevented from decreasing due to clogging of the filter 55, thereby affecting the dust removal effect in the feeding bin 1.

Claims

1. A feeding dust prevention mechanism for an extraction tank, comprising a feeding bin (1), a feeding cylinder (2) fixedly connected to the bottom of the feeding bin (1), the feeding bin (1) being fixedly connected to an extraction tank (3) via the feeding cylinder (2), characterized in that: A dust removal component (4) is installed between the feeding bin (1) and the extraction tank (3); The dust removal assembly (4) comprises a main connecting pipe (41), one end of which is connected to the inner cavity of the feeding bin (1), the other end of which is fixedly connected to a dust suction fan (42), the side wall of which is fixedly connected to one end of a negative pressure pipe (43), and the other end of which is fixedly connected to the top of the extraction tank (3).

2. The dust-proof mechanism for feeding a extraction tank according to claim 1, characterized in that: A first control valve (44) and a second control valve (45) are fixedly mounted in the main connecting pipe (41) and the negative pressure pipe (43), respectively.

3. The feeding dust prevention mechanism of the extraction tank according to claim 1 is characterized in that: A filter assembly (5) is fixedly mounted in the main connecting pipe (41), the filter assembly (5) comprising a filter tube (51), a mounting groove (52) is provided at the bottom of the filter tube (51), a mounting frame (53) is mounted in the mounting groove (52), a clamping frame (54) is fixedly mounted in the inner cavity of the filter tube (51), and a filter screen (55) is clamped in the clamping frame (54).

4. The dust-proof mechanism for feeding a extraction tank according to claim 3, characterized in that: The mounting frame (53) and the filter tube (51) are detachably fixedly assembled via fixing bolts and fixing nuts.

5. The dust-proof mechanism for feeding a extraction tank according to claim 3, characterized in that: The number of the filter screens (55) is at least two groups, the number of the clamping frames (54) matches the number of the filter screens (55), and the two groups of the filter screens (55) are evenly distributed from front to back.

Images