A solid-liquid separation device

Abstract

The utility model discloses a solid -liquid separation device, including jar body and filter screen device, filter screen device installs in jar body inside, and the top of jar body is sealedly installed with jar cover, and filter screen device passes through jar cover pressure and covers fixed, and the installation of feed pipe way is installed on the jar cover, and filter screen device includes separation filter screen, and separation filter screen is located just below feed pipe way, and the separation filter screen below in jar body is equipped with liquid cavity, and jar body lateral wall is installed with drainage pipe way, and drainage pipe way communicates liquid cavity, and the utility model discloses can satisfy the separation demand of solid particle and product liquid, and the utility model will separate out solid particle and concentrate in filter screen device, and filter screen device has the advantage that dismounts and decomposes conveniently, and through the utility model can conveniently carry out solid particle and take out operation and filter screen replacement operation.

Description

Technical Field

[0001] This utility model relates to the field of chemical product production equipment technology, and more specifically, to a solid-liquid separation device. Background Technology

[0002] N-Cyanoethyl-N-benzylaniline is a pale yellow-white powder primarily used in the synthesis of SE-type disperse dyes. It not only possesses high fixation rate and sublimation fastness but is also suitable for the hot-melt dyeing of polyester fibers. It is an important organic intermediate widely used in the synthesis of dyes. The synthesis of N-cyanoethyl-N-benzylaniline involves multiple reactions of water, N-cyanoethylaniline, sodium chlorobenzyl carbonate solution, and glacial acetic acid. In the prepared N-cyanoethyl-N-benzylaniline semi-finished product solution, some solid particles remain (insoluble matter or incompletely reacted substances). These solid particles need to be separated to avoid affecting the quality of the final N-cyanoethyl-N-benzylaniline product. While the company's existing solid-liquid separation device has good separation efficiency, it suffers from difficulties in removing the separated solids and inconvenient filter replacement. Therefore, the company needs to upgrade its solid-liquid separation device to meet production requirements. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a solid-liquid separation device. This invention can meet the separation requirements of solid particles and product liquid. This invention concentrates the separated solid particles in the filter screen device. The filter screen device has the advantages of convenient disassembly and disassembly. Through this invention, the solid particles can be easily removed and the filter screen can be replaced.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A solid-liquid separation device includes a tank and a filter screen device. The filter screen device is installed inside the tank. A tank cover is sealed on the top of the tank. The filter screen device is fixed by the tank cover. A feed pipe is installed on the tank cover. The filter screen device includes a separation filter screen located directly below the feed pipe. A liquid chamber is provided below the separation filter screen inside the tank. A drain pipe is installed on the side wall of the tank and connects to the liquid chamber.

[0006] Furthermore, a bracket is fixedly connected to the inner wall of the tank, and the filter device also includes a cylinder. The top of the cylinder is turned outward to form a hanging flange. The cylinder is hung on the bracket through the hanging flange. The cylinder is vertically continuous, and a filter fixing seat is installed at the bottom of the cylinder. A separation filter is installed on the filter fixing seat.

[0007] Furthermore, a ring of pressure tongue extends from the bottom of the can lid, which can be inserted into the top of the can body and, together with the bracket, clamps and fixes the suspension flange of the cylinder body.

[0008] Furthermore, a support ring is fixedly connected to the bottom of the cylinder, and the filter screen fixing seat rests on the support ring. The filter screen fixing seat is annular, and a separation filter screen is fixedly installed in the inner hole of the filter screen fixing seat.

[0009] Furthermore, the top of the filter screen holder is provided with a sloping drainage ramp.

[0010] Furthermore, the separating filter is arranged downwards.

[0011] Furthermore, several rings are installed on the top of the cylinder.

[0012] Furthermore, a level switch is installed in the liquid chamber, and a control valve is installed in the feed pipe. The level switch and the control valve are linked for control.

[0013] Furthermore, an observation window is installed on the can lid.

[0014] Furthermore, the bottom of the feed pipe extends into the tank body, and a buffer is threadedly installed at the bottom of the feed pipe. The buffer includes a buffer tube body, the top of which is threadedly connected to the feed pipe. The bottom of the buffer tube body is closed, and several channel holes are opened on the side of the buffer tube body. The channel holes communicate with the inside of the buffer tube body. A flow diffuser cone is installed at the bottom of the buffer tube body with the cone tip facing upward.

[0015] The beneficial effects of this utility model are:

[0016] This invention adopts top feeding, and the solution can effectively separate solid particles after passing through the filter screen device. The structure of this invention is reasonably designed, and the separated solid particles are retained in the filter screen device. The filter screen device of this invention has the advantages of convenient disassembly and disassembly. Through this invention, the solid particles can be easily removed and the filter screen can be replaced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of a solid-liquid separation device in this embodiment;

[0018] Figure 2 This is a cross-sectional view of the internal structure of a solid-liquid separation device in this embodiment.

[0019] Reference numerals: Tank 1, Liquid chamber 11, Drain pipe 12, Liquid level switch 13, Bracket 14, Filter device 2, Separating filter 21, Cylinder 22, Suspension flange 221, Finger ring 222, Support ring 23, Filter fixing seat 24, Drain slope 241, Tank cover 3, Pressure tongue 31, Observation window 32, Feed pipe 4, Control valve 41, Buffer 5, Buffer tube 51, Channel hole 52, Diffuser cone 53. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 and Figure 2 The solid-liquid separation device shown includes a tank 1 and a filter device 2. The filter device 2 is installed inside the tank 1. A tank cover 3 is sealed on the top of the tank 1. The tank 1 and the tank cover 3 are connected by a flange seal and can be disassembled and separated. The filter device 2 is fixed by the tank cover 3. A feed pipe 4 is installed on the tank cover 3. The feed pipe 4 is connected to the reaction vessel for preparing N-cyanoethyl-N-benzylaniline product. The feed pipe 4 can input the semi-finished N-cyanoethyl-N-benzylaniline product solution into the device. The filter device 2 includes a separation filter 21, which is located directly below the feed pipe 4. The semi-finished N-cyanoethyl-N-benzylaniline product solution is separated from the filter device 2. The -cyanoethyl-N-benzylaniline product solution falls through a separation filter 21. The precision of the separation filter 21 is sufficient to filter solid particulate impurities in the solution, thus ensuring the purity of the output liquid and guaranteeing the quality of the final product. A liquid chamber 11 is provided below the separation filter 21 in the tank 1. The filtered solution is collected in the liquid chamber 11, and the separated solid particulate impurities remain in the separation filter 21. A drain pipe 12 is installed on the side wall of the tank 1, which is connected to the liquid chamber 11 and an external drain pipe. The drain pipe 12 serves to output the filtered solution and is connected to the lowest end of the liquid chamber 11.

[0022] To address the difficulties in removing solids and the inconvenience of disassembling and replacing the filter screen, this invention improves the structure and installation method of the filter screen device 2, such as... Figure 2As shown, a bracket 14 is fixedly connected to the inner wall of the tank 1 (the tank 1 is cylindrical). The filter device 2 also includes a cylindrical body 22. The top of the cylindrical body 22 is turned outward to form a hanging flange 221. The outer diameter of the hanging flange 221 is larger than the inner diameter of the bracket 14. The cylindrical body 22 is hung on the bracket 14 through the hanging flange 221. The cylindrical body 22 is open from top to bottom, and the open top of the cylindrical body 22 does not affect the spillage of the solution. A filter fixing seat 24 is installed at the bottom of the cylindrical body 22. A separation filter 21 is installed on the filter fixing seat 24. The separation filter 21 blocks the solution from falling in the path of the solution to form a filtration and separation effect. In this invention, a pressure tongue 31 extends from the bottom of the can lid 3. After the can body 1 and the can lid 3 are connected by a flange, the pressure tongue 31 is inserted from the top of the can body 1 and clamps the suspension flange 221 of the fixed cylinder 22 together with the bracket 14. This ensures that the filter device 2 is reliably fixed. In this clamping and fixing mode, the filter device 2 is very easy to install and remove. After opening the can lid 3, the filter device 2 immediately loses its fixation and can be quickly lifted out. In this invention, a support ring 23 is welded and fixedly connected to the bottom of the cylinder 22. The outer diameter of the filter fixing seat 24 is larger than the inner diameter of the support ring 23, thus fixing the filter. The filter holder 24 is fitted into the cylinder 22 and rests on the support ring 23. The filter holder 24 is annular, and a separating filter 21 is fixedly installed in the inner hole of the filter holder 24. The filter holder 24 and the separating filter 21 are installed as a whole. The filter holder 24 and the separating filter 21 are installed by gravity. Since the solution is input downwards, this installation does not affect the effectiveness of the separating filter 21. In this installation mode, the filter holder 24 and the separating filter 21 are easy to disassemble and assemble as a whole. After lifting the filter device 2, the separating filter can be poured out in reverse. 21. The present invention has a ring of inclined drainage slope 241 at the top of the filter screen fixing base 24. The drainage slope 241 can guide the solution from the outside to the separation filter screen 21 for filtration and separation. The present invention adopts a downward setting for the separation filter screen 21. The advantage of this is that it can make full use of the screen surface and can also catch the filtered solid particles and impurities in the screen. When the separation filter screen 21 is poured out, the solid particles and impurities inside can also be taken out together. Under the above design of the present invention, the disassembly and replacement of the separation filter screen 21 and the removal of the separated solid particles and impurities are very convenient.

[0023] like Figure 2 As shown, several finger rings 222 are installed on the top of the cylinder 22. The finger rings 222 can be inserted into the fingers. This design is to facilitate the lifting and removal of the entire filter device 2.

[0024] like Figure 2As shown, a level switch 13 is installed in the liquid chamber 11. The level switch 13 is a float switch and controls the liquid level height in the liquid chamber 11. A control valve 41 is installed in the feed pipe 4. The control valve 41 is in electrical control mode and controls the opening and closing of the feed pipe 4. The level switch 13 and the control valve 41 are linked. When the level switch 13 is triggered, it indicates that the liquid level in the liquid chamber 11 is too high and there is too much filtered solution in the storage. It is necessary to wait for the output before feeding. At this time, the control valve 41 is activated to close the feed in the feed pipe 4.

[0025] like Figure 1 As shown, an observation window 32 is installed on the can lid 3. The observation window 32 allows a view of the internal working conditions. The main purpose is to observe the amount of solid particles and impurities in the pocket of the separation filter 21. When a large amount of solid particles and impurities are trapped, the present invention needs to be disassembled and cleaned.

[0026] Since the feed is from top to bottom, the impact force of the feed will affect the separating filter screen 21, reducing its service life. Furthermore, the continuous impact on the same area also reduces the utilization rate of the screen surface, affecting operational efficiency. In this case, the present invention extends the bottom of the feed pipe 4 into the tank body 1. A buffer 5 is threadedly installed at the bottom of the feed pipe 4. The buffer 5 includes a buffer tube 51, the top of which is threadedly connected to the feed pipe 4. The bottom of the buffer tube 51 is closed, and several channel holes 52 are opened on the side of the buffer tube 51. The channel hole 52 is connected to the inside of the buffer tube 51. The channel hole 52 serves as the output of the liquid. A diffuser cone 53 is installed at the bottom of the buffer tube 51 with the cone tip facing upward. After the material is output from the feed pipe 4, it enters the buffer 5 and first impacts the diffuser cone 53 to form a liquid flow dispersion. Then it is sprinkled from each channel hole 52. The design of the buffer 5 disperses the input material solution, greatly reducing the impact force on the screen surface of the separation filter 21. Moreover, the sprinkled liquid makes full use of the screen area. This design can improve the service life and filtration efficiency of the separation filter 21.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A solid-liquid separation device, characterized in that, The device includes a tank (1) and a filter device (2). The filter device (2) is installed inside the tank (1). The top of the tank (1) is sealed with a tank cover (3). The filter device (2) is fixed by the tank cover (3). A feed pipe (4) is installed on the tank cover (3). The filter device (2) includes a separation filter (21). The separation filter (21) is located directly below the feed pipe (4). A liquid chamber (11) is provided below the separation filter (21) inside the tank (1). A drain pipe (12) is installed on the side wall of the tank (1). The drain pipe (12) is connected to the liquid chamber (11).

2. The solid-liquid separation device according to claim 1, characterized in that, The inner wall of the tank (1) is fixedly connected to a bracket (14). The filter device (2) also includes a cylinder (22). The top of the cylinder (22) is turned outward to form a hanging flange (221). The cylinder (22) is hung on the bracket (14) through the hanging flange (221). The cylinder (22) is open from top to bottom. A filter fixing seat (24) is installed at the bottom of the cylinder (22). A separation filter (21) is installed on the filter fixing seat (24).

3. The solid-liquid separation device according to claim 2, characterized in that, The bottom of the can lid (3) extends to form a ring of pressure tongue (31), which can be inserted into the top of the can body (1) and together with the bracket (14) clamp and fix the suspension flange (221) of the cylinder (22).

4. The solid-liquid separation device according to claim 2, characterized in that, The bottom of the cylinder (22) is fixedly connected to a support ring (23), and the filter screen fixing seat (24) rests on the support ring (23). The filter screen fixing seat (24) is annular, and a separation filter screen (21) is fixedly installed in the inner hole of the filter screen fixing seat (24).

5. The solid-liquid separation device according to claim 4, characterized in that, The top of the filter screen holder (24) is provided with a sloping drainage slope (241).

6. The solid-liquid separation device according to claim 1, characterized in that, The separation filter (21) is suspended downwards.

7. The solid-liquid separation device according to claim 2, characterized in that, Several finger rings (222) are installed on the top of the cylinder (22).

8. The solid-liquid separation device according to claim 1, characterized in that, The liquid chamber (11) is equipped with a liquid level switch (13), and the feed pipe (4) is equipped with a control valve (41). The liquid level switch (13) and the control valve (41) are linked for control.

9. The solid-liquid separation device according to claim 1, characterized in that, An observation window (32) is installed on the can lid (3).

10. The solid-liquid separation device according to claim 1, characterized in that, The bottom of the feed pipe (4) extends into the tank (1). A buffer (5) is threadedly installed at the bottom of the feed pipe (4). The buffer (5) includes a buffer tube (51). The top of the buffer tube (51) is threadedly connected to the feed pipe (4). The bottom of the buffer tube (51) is closed. Several channel holes (52) are opened on the side of the buffer tube (51). The channel holes (52) are connected to the inside of the buffer tube (51). A diffuser cone (53) is installed at the bottom of the buffer tube (51). The diffuser cone (53) is installed with the cone tip facing upward.

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