Negative pressure suction filtration device

Abstract

The utility model relates to the technical field of chemical liquid product treatment, and discloses a negative pressure suction filtration device which comprises a rack, a funnel fixedly arranged on a support above the rack, and a collection bottle fixedly arranged on a support below the rack, an opening of the funnel is located above the rack, the bottom of the funnel is conical, and a filtration outlet is formed in the lower portion of the funnel. The filter outlet is communicated with an upper opening of a collecting bottle through a sealing flange, the upper opening of the collecting bottle is provided with a vacuumizing opening and is connected with an air pipe to a negative pressure source, the lower end of the collecting bottle is provided with a discharging opening and is connected with a discharging pipe through a vacuum flange, the discharging pipe is provided with a discharging valve, and an outlet of the discharging valve is connected with a discharging hose for output. According to the utility model, the volume of the funnel is increased, the replaceable filter screen is arranged, and the unloading valve is arranged below the collecting bottle, so that the handling capacity is increased, the unloading is convenient, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical liquid product processing technology, and in particular to a negative pressure filtration device. Background Technology

[0002] In the pilot production of chemical liquid products, solid-liquid separation of intermediate crystallizing liquids is required. Traditionally, this separation is achieved using vacuum filtration funnels and filtration flasks. Currently used vacuum filtration funnels are ceramic funnels with sintered filter holes inside. However, for different crystallizing liquids and crystals of varying sizes, it is impossible to adjust the pore size. Furthermore, existing vacuum filtration funnels are small in size and cannot meet the required throughput.

[0003] The existing vacuum filtration flasks need to be removed from the frame after filtration to pour out the filtrate, which is a cumbersome process and not conducive to improving production efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by providing a negative pressure filtration device. By increasing the volume of the funnel and equipping it with a replaceable filter screen, and installing a discharge valve below the collection bottle, the processing capacity is increased, the material discharge is facilitated, and the work efficiency is improved.

[0005] The technical solution adopted by this utility model is:

[0006] A negative pressure filtration device is characterized by comprising a frame, a funnel fixedly mounted on an upper support of the frame, and a collection bottle fixedly mounted on a lower support of the frame. The opening of the funnel is located above the frame, the bottom of the funnel is conical, and the lower part is a filter outlet. The filter outlet is connected to the upper opening of the collection bottle through a sealing flange. A vacuum port is provided on the upper opening of the collection bottle, which is connected to a gas pipe to a negative pressure source. A discharge port is provided at the lower end of the collection bottle, which is connected to a discharge pipe through a vacuum flange. A discharge valve is provided on the discharge pipe, and the outlet of the discharge valve is connected to a discharge hose for output.

[0007] Furthermore, a filter screen is provided inside the funnel, and the filter screen covers the top of the conical bottom of the funnel.

[0008] Furthermore, the lower support includes a horizontal support disposed below the frame, a bracket is disposed on the horizontal support, the collection bottle is a spherical glass bottle, and the bottom of the collection bottle is fixed on the bracket.

[0009] Furthermore, a vertical column is provided below the frame, a sleeve is provided on the vertical column, and the lateral support is provided on the sleeve. The sleeve is fixed to the vertical column by fasteners and is used to adjust the height of the lateral support.

[0010] Furthermore, the funnel is made of stainless steel, with a barrel-shaped structure at the top and an opening located above the frame.

[0011] Furthermore, casters are provided at the bottom of the frame.

[0012] The beneficial effects of this utility model are:

[0013] (1) The stainless steel funnel increases the filtration area and improves the filtration efficiency;

[0014] (2) After the crystallization filtrate is collected, a bottom discharge valve is added so that the crystallization filtrate can be discharged without disassembling the collection bottle, which is convenient for operation and improves efficiency. Attached Figure Description

[0015] Appendix Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Appendix Figure 2 This is a partially enlarged schematic diagram of the present invention;

[0017] Appendix Figure 3 This is a three-dimensional structural diagram of the upper part of this utility model.

[0018] The labels in the attached diagram are as follows:

[0019] 1. Frame; 2. Casters;

[0020] 3. Upper support; 4. Funnel;

[0021] 5. Lower support; 6. Collection bottle;

[0022] 7. Filter outlet; 8. Filter screen;

[0023] 9. Sealing flange; 10. Top opening;

[0024] 11. Vacuum port; 12. Gas tube;

[0025] 13. Discharge port; 14. Discharge pipe;

[0026] 15. Discharge valve; 16. Discharge hose;

[0027] 17. Lateral support; 18. Bracket;

[0028] 19. Vertical column; 20. Sleeve. Detailed Implementation

[0029] The specific implementation of a negative pressure filtration device according to the present invention will be described in detail below with reference to the accompanying drawings.

[0030] See appendix Figure 1The negative pressure filtration device of this patent includes a frame 1, with casters 2 installed at the bottom of the frame 1. A funnel 4 is fixedly installed on the upper support 3 of the frame 1, and a collection bottle 6 is fixedly installed on the lower support 5 of the frame 1. The outlet of the funnel 4 is connected to the collection bottle 6 below.

[0031] See appendix Figure 2 , 3 The opening of funnel 4 is located above frame 1. Funnel 4 is made of stainless steel, with a barrel-shaped upper part and a conical bottom. The bottom of funnel 4 has a filter outlet 7. A filter screen 8 is installed inside funnel 4, covering the conical bottom of funnel 4. The mesh size of filter screen 8 is selected according to the crystallization particle size of the material and can be replaced as needed.

[0032] The filter outlet 7 of the funnel 4 is connected to the upper opening 10 of the collection bottle 6 through a sealing flange 9. A vacuum port 11 is provided on the upper opening 10 of the collection bottle 6, and a gas pipe 12 is connected to a negative pressure source. During operation, a negative pressure is formed inside the collection bottle 6, and the liquid in the crystals in the funnel 4 is drawn into the collection bottle 6.

[0033] The lower end of the collection bottle 6 is provided with a discharge port 13, which is connected to the discharge pipe 14 through the sealing flange 9. The discharge pipe 14 is provided with a discharge valve 15, and the outlet of the discharge valve 15 is connected to the discharge hose 16 for output.

[0034] See appendix Figure 2 The lower support 5 includes a horizontal support 17 located below the frame 1, with a bracket 18 mounted on the horizontal support 17. The collection bottle 6 is a spherical glass bottle, and its bottom is fixed to the bracket 18. A vertical column 19 is located below the frame 1, with a sleeve 20 mounted on the vertical column 19. The horizontal support 17 is mounted on the sleeve 20, and the sleeve 20 is fixed to the vertical column 19 by fasteners (not shown in the figure) to adjust the height of the horizontal support 17.

[0035] The working process of this patent is as follows: the operator selects a suitable filter screen 8 and places it in the funnel 4, then pours the material into the funnel 4, activates the negative pressure source to create negative pressure inside the collection bottle 6, and under the action of negative pressure, the liquid in the crystals precipitates out and flows into the collection bottle 6. After the filtration process is completed, the discharge hose 16 is pulled to the output tank, the discharge valve 15 is opened, and the liquid in the collection bottle 6 is discharged.

[0036] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A negative pressure filtration device, characterized in that: The device includes a frame, a funnel fixedly mounted on an upper support of the frame, and a collection bottle fixedly mounted on a lower support of the frame. The opening of the funnel is located above the frame, and the bottom of the funnel is conical with a filter outlet at the bottom. The filter outlet is connected to the upper opening of the collection bottle via a sealing flange. A vacuum port is provided on the upper opening of the collection bottle, which is connected to a negative pressure source via an air pipe. A discharge port is provided at the lower end of the collection bottle, which is connected to a discharge pipe via a vacuum flange. A discharge valve is provided on the discharge pipe, and the outlet of the discharge valve is connected to a discharge hose for output.

2. The negative pressure filtration device according to claim 1, characterized in that: A filter screen is installed inside the funnel, and the filter screen covers the top of the conical bottom of the funnel.

3. The negative pressure filtration device according to claim 1, characterized in that: The lower support includes a horizontal support set below the frame, and a bracket is set on the horizontal support. The collection bottle is a spherical glass bottle, and the bottom of the collection bottle is fixed on the bracket.

4. The negative pressure filtration device according to claim 3, characterized in that: A vertical column is installed below the frame, a sleeve is installed on the vertical column, and a horizontal support is installed on the sleeve. The sleeve is fixed to the vertical column by fasteners and is used to adjust the height of the horizontal support.

5. A negative pressure filtration device according to any one of claims 1 to 4, characterized in that: The funnel is made of stainless steel and has a barrel-shaped structure at the top, with the opening located above the frame.

6. A negative pressure filtration device according to any one of claims 1 to 4, characterized in that: The frame is equipped with casters.

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