A waste acid water treatment device

Abstract

This utility model discloses a waste acid water treatment device, relating to the field of industrial wastewater treatment technology. It includes a shell with a waste acid water inlet, a neutralizing agent addition pipe, and a post-reaction discharge pipe. A funnel-shaped filter is installed at the upper part of the shell, comprising a funnel cylinder. An inner partition is arranged along a vertical plane of symmetry inside the funnel cylinder, and the inner partition is rotatably connected to the side wall of the shell along its central axis. A filter plate is arranged between the funnel cylinder and the inner partition, and a filter discharge pipe is located at the lowest point of the bottom of the funnel cylinder. A stirring device is also installed in the lower part of the shell. This utility model allows for the replacement of the inner and outer filter plates by rotating the funnel cylinder, facilitating easy removal and cleaning of the filter plates while maintaining normal filtration operations within the shell.

Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, and in particular to a waste acid water treatment device. Background Technology

[0002] Sodium dichloroquinoline is a widely used herbicide. Currently, most domestic manufacturers of sodium dichloroquinoline carboxylate use a nitric acid oxidation process. The industrial route for the nitric acid oxidation process of sodium dichloroquinoline involves first preparing 7-chloro-8-methylquinoline from 3-chloro-2-methylaniline and glycerol, then reacting 7-chloro-8-methylquinoline with chlorine to generate 3,7-dichloro-8-methylquinoline chloride, and finally oxidizing the 3,7-dichloro-8-methylquinoline chloride in concentrated sulfuric acid with concentrated nitric acid to obtain sodium dichloroquinoline carboxylate. Waste acid water is generated during the production process, either through reaction or cleaning. When treating this waste acid water, alkaline substances (such as lime or sodium hydroxide) need to be added to neutralize its strong acidity and adjust the pH to 6-9 to reduce the risk of corrosion in subsequent processes. During this process, because the waste acid water contains impurities and other solid particles, it usually needs to be filtered first. The filter screens of ordinary waste acid water neutralization treatment devices are mostly located inside the box or shell. When there are many impurities on the filter screen, it needs to be disassembled from the inside for cleaning, which is inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a waste acid water treatment device that solves the problem mentioned in the background art that the filter screen of ordinary waste acid water neutralization treatment devices is mostly located inside the box or shell, and when there are many impurities on the filter screen, it needs to be disassembled from the inside for cleaning, which is inconvenient to operate.

[0004] The present invention adopts the following technical solution:

[0005] This utility model discloses a waste acid water treatment device, including a shell, a waste acid water inlet at the top of the shell, a funnel-shaped filter at the upper part of the shell, and the waste acid water inlet located directly above the funnel-shaped filter;

[0006] The funnel-shaped filter includes a funnel cylinder, and an inner partition is fixedly arranged inside the funnel cylinder along the vertical plane of symmetry. The inner partition is rotatably connected to the side wall of the shell along the central axis.

[0007] Multiple semi-circular filter plates are detachably provided between the funnel cylinder and the inner partition plate, and a filter discharge pipe is provided at the lowest point of the bottom of the funnel cylinder.

[0008] A neutralizing agent addition pipe is provided on the side wall of the shell, and a stirring device is also provided in the lower part of the shell. The neutralizing agent addition pipe is located below the funnel-shaped filter, and the stirring device is located below the neutralizing agent addition pipe.

[0009] The bottom of the shell is provided with a post-reaction discharge pipe.

[0010] Preferably, the mesh size of the filter plates decreases from top to bottom.

[0011] Preferably, the side wall of the shell is provided with a triangular opening, the side wall of the funnel cylinder is in sealing contact with the side of the triangular opening, and the inner partition is in sealing contact with the top of the triangular opening.

[0012] Preferably, a first cylinder is provided in the middle of the upper surface of the inner partition, and a first sleeve is provided on the upper side of the triangular opening at a position corresponding to the first cylinder, and the first cylinder is rotatably connected inside the first sleeve.

[0013] The bottom end of the funnel cylinder is provided with a second cylinder, and the base angle of the triangular opening is provided with a second sleeve at a position corresponding to the second cylinder, and the second cylinder is rotatably connected inside the second sleeve.

[0014] Preferably, an annular slide rail is provided on the circular edge of the funnel cylinder, and a groove is provided on the upper side of the triangular opening at a position corresponding to the slide rail, and the slide rail and the groove are slidably connected and engaged.

[0015] The slide rail is provided with a limiting block, and the upper side of the triangular opening is provided with a limiting notch at a position corresponding to the limiting block. The limiting block and the limiting notch are engaged in a locking fit.

[0016] There is one limiting block and two limiting notches, with the two limiting notches located on both sides of the upper side of the triangular opening.

[0017] Preferably, the limiting block is provided with L-shaped inner channels on both sides.

[0018] Preferably, the inner wall of the funnel cylinder is provided with an arc-shaped placement groove, the inner partition is provided with a support block, the arc-shaped edge of the filter plate is placed in the arc-shaped placement groove, and the straight edge of the filter plate is placed on the support block.

[0019] Preferably, there are two filter discharge pipes, and the two filter discharge pipes are respectively located on both sides of the inner partition. The filter discharge pipes are inclined to the inner partition, and the outlet of the filter discharge pipe is inclined towards the inside of the housing.

[0020] Preferably, the stirring device includes a stirring shaft, both ends of which are rotatably and sealed to the housing. One end of the stirring shaft passes through the housing and is connected to the output end of a motor. The motor is mounted on the outer wall of the housing, and stirring blades are provided on the stirring shaft.

[0021] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0022] This utility model designs a rotatable funnel-shaped filter, with half of the funnel-shaped filter located inside the housing and half located outside the housing. The inner and outer filter plates can be replaced by rotating the filter, which allows the filter plates to be easily removed for cleaning, while the filtration function inside the housing can continue normally without being affected. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the waste acid water treatment device of this utility model. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the waste acid water treatment device of this utility model. Figure 2 ;

[0026] Figure 3 This is a cross-sectional view of the funnel-shaped filter in the waste acid water treatment device of this utility model;

[0027] Figure 4 This is a schematic diagram of the funnel-shaped filter structure in the waste acid water treatment device of this utility model;

[0028] Figure 5 This is a schematic diagram of the chute and limiting notch structure in the waste acid water treatment device of this utility model;

[0029] Figure 6 This is a cross-sectional view of the chute and limiting notch in the waste acid water treatment device of this utility model;

[0030] Figure 7 This is a cross-sectional view of the limiting block and L-shaped inner channel in the waste acid water treatment device of this utility model;

[0031] Figure 8 This is a schematic diagram of the filter plate structure in the waste acid water treatment device of this utility model.

[0032] Explanation of reference numerals in the attached drawings: 1. Shell; 1-1. Waste acid water inlet; 1-2. Discharge pipe after reaction; 1-3. First sleeve; 1-4. Second sleeve; 1-5. Triangular opening; 1-5-1. Slide groove; 1-5-2. Limiting notch; 2. Funnel-shaped filter; 2-1. Inner partition; 2-1-1. First cylinder; 2-1-2. Support block; 2-2. Funnel cylinder; 2-2-1. Second cylinder; 2-2-2. Slide rail; 2-2-3. Limiting block; 2-2-4. Arc-shaped placement groove; 2-2-5. L-shaped inner channel; 2-3. Filter plate; 2-4. Filter discharge pipe; 3. Neutralizing agent addition pipe; 4. Stirring device; 4-1. Stirring shaft; 4-2. Motor; 4-3. Stirring blade. Detailed Implementation

[0033] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] like Figure 1 and Figure 2 As shown, this embodiment discloses a waste acid water treatment device, including a housing 1, with a waste acid water inlet 1-1 at the top of the housing 1. A funnel-shaped filter 2 is provided on the upper part of the housing 1, with the waste acid water inlet 1-1 located directly above the funnel-shaped filter 2. After waste acid water is injected into the waste acid water inlet 1-1, it will fall directly into the funnel-shaped filter 2 for filtration. The funnel-shaped filter 2 includes a funnel cylinder 2-2, with an inner partition 2-1 fixedly arranged along the vertical plane of symmetry inside the funnel cylinder 2-2. The inner partition 2-1 is sealed to the inner wall of the funnel cylinder 2-2, dividing the funnel cylinder 2-2 into two semi-conical regions in the middle. The inner partition 2-1 is rotatably connected to the side wall of the housing 1 along the central axis. Multiple semi-circular filter plates 2-3 are detachably arranged between the funnel cylinder 2-2 and the inner partition 2-1, with the mesh size of the multiple filter plates 2-3 decreasing sequentially from top to bottom. A filter discharge pipe 2-4 is provided at the lowest point of the bottom of the funnel cylinder 2-2. After being filtered layer by layer by the filter plates 2-3, the filter flows out from the filter discharge pipe 2-4 into the lower part of the shell 1.

[0035] like Figure 2 As shown, where Figure 2 The upper part is a cross-sectional view of the funnel-shaped filter 2, which is vertically cut open from the inner partition 2-1. Figure 2 The lower half is a sectional view of the lower part of shell 1.

[0036] A neutralizing agent inlet pipe 3 is provided on the side wall of the shell 1 for adding alkaline neutralizing agent. A stirring device 4 is also provided in the lower part of the shell 1. The neutralizing agent inlet pipe 3 is located below the funnel-shaped filter 2, and the stirring device 4 is located below the neutralizing agent inlet pipe 3. The bottom of the shell 1 is funnel-shaped, and a reaction discharge pipe 1-2 with a valve is provided at its lowest point. After adding alkaline neutralizing agent through the neutralizing agent inlet pipe 3, the stirring device 4 is started to stir the alkaline neutralizing agent and waste acid water. After the stirring reaction is completed, the reaction discharge pipe 1-2 is opened to discharge the waste acid water.

[0037] like Figures 1 to 3 As shown, the side wall of the shell 1 is provided with a triangular opening 1-5, the side wall of the funnel cylinder 2-2 is in sealing contact with the side of the triangular opening 1-5, and the inner partition 2-1 is in sealing contact with the upper side of the triangular opening 1-5.

[0038] In this embodiment, the stirring device 4 includes a stirring shaft 4-1, with both ends of the stirring shaft 4-1 rotatably and sealed to the housing 1. One end of the stirring shaft 4-1 passes through the housing 1 and is connected to the output end of the motor 4-2. The motor 4-2 is mounted on the outer wall of the housing 1, and stirring blades 4-3 are mounted on the stirring shaft 4-1. Starting the motor 4-2 can drive the stirring shaft 4-1 and stirring blades 4-3 to rotate, thereby stirring the filtered waste acid water and the added neutralizing agent.

[0039] like Figures 3 to 4 As shown, a first cylinder 2-1-1 is disposed in the middle of the upper surface of the inner partition 2-1. A first sleeve 1-3 is disposed on the upper side of the triangular opening 1-5 at a position corresponding to the first cylinder 2-1-1. The first cylinder 2-1-1 is rotatably connected inside the first sleeve 1-3. A second cylinder 2-2-1 is disposed at the bottom end of the funnel cylinder 2-2. A second sleeve 1-4 is disposed at the bottom corner of the triangular opening 1-5 at a position corresponding to the second cylinder 2-2-1. The second cylinder 2-2-1 is rotatably connected inside the second sleeve 1-4. The first cylinder 2-1-1 and the second cylinder 2-2-1 are both located on the rotational axis of the funnel cylinder 2-2 and the inner partition 2-1.

[0040] like Figure 3 As shown, in this embodiment, as a way to achieve the disassembly and connection of filter plate 2-3, an arc-shaped placement groove 2-2-4 is provided on the inner wall of the funnel cylinder 2-2, and a support block 2-1-2 is provided on the inner partition 2-1. The arc-shaped edge of filter plate 2-3 is placed in the arc-shaped placement groove 2-2-4, and the straight edge of filter plate 2-3 is placed on the support block 2-1-2. The arc-shaped edge of filter plate 2-3 is tightly pressed against the inner wall of the funnel cylinder 2-2 without gaps, and the straight edge of filter plate 2-3 is tightly pressed against the inner partition 2-1 without gaps, so as to ensure that there is no leakage during filtration. When it is necessary to remove filter plate 2-3, filter plate 2-3 can be directly removed from the arc-shaped placement groove 2-2-4 and the support block 2-1-2.

[0041] There are two filter discharge pipes 2-4, and the two filter discharge pipes 2-4 are located on both sides of the inner partition 2-1 respectively. The filter discharge pipes 2-4 and the inner partition 2-1 are inclined to each other, and the outlet of the filter discharge pipes 2-4 is inclined towards the inside of the shell 1 so that the filtered waste acid water can flow downward.

[0042] like Figures 4 to 7 As shown, a circular slide rail 2-2-2 is provided on the circular edge of the funnel cylinder 2-2. A groove 1-5-1 is provided on the upper side of the triangular opening 1-5 at the position corresponding to the slide rail 2-2-2. The slide rail 2-2-2 and the groove 1-5-1 are slidably connected and engaged. A limit block 2-2-3 is provided on the slide rail 2-2-2. A limit notch 1-5-2 is provided on the upper side of the triangular opening 1-5 at the position corresponding to the limit block 2-2-3. The limit block 2-2-3 and the limit notch 1-5-2 are engaged and engaged.

[0043] In this embodiment, one limiting block 2-2-3 is provided, and two limiting notches 1-5-2 are provided, with the two limiting notches 1-5-2 located on both sides of the upper side of the triangular opening 1-5, respectively. When the limiting block 2-2-3 is engaged with one of the limiting notches 1-5-2, the upper side of the inner partition 2-1 forms a sealed closed state with the upper side of the triangular opening 1-5. When the funnel cylinder 2-2 is rotated to rotate the limiting block 2-2-3 to the other limiting notch 1-5-2, the half of the funnel cylinder 2-2 located inside the shell 1 is rotated to the outside of the shell 1.

[0044] In this embodiment, L-shaped inner channels 2-2-5 are provided on both sides of the limiting block 2-2-3. The wire hook is inserted into the L-shaped inner channel 2-2-5 and hooked onto the side wall of the limiting block 2-2-3, which can be easily pulled or pushed into the limiting block 2-2-3, thereby rotating the funnel cylinder 2-2.

[0045] The funnel cylinder 2-2 is rotated circumferentially. The first cylinder 2-1-1 rotates within the first sleeve 1-3, the second cylinder 2-2-1 rotates within the second sleeve 1-4, and the slide rail 2-2-2 slides along the slide groove 1-5-1. The entire funnel cylinder 2-2 rotates around the first cylinder 2-1-1 and the second cylinder 2-2-1 as axes. This causes the half of the funnel cylinder 2-2 located inside the shell 1 and its internal filter plate 2-3 to rotate to the outside of the shell 1, while the half of the funnel cylinder 2-2 located outside the shell 1 and its internal filter plate 2-3 rotate to the inside of the shell 1. This allows the filter plate 2-3, originally located inside the shell 1, to be disassembled, removed, and cleaned.

[0046] In this embodiment, valves are provided at the waste acid water inlet 1-1, the post-reaction discharge pipe 1-2, and the neutralizing agent addition pipe 3.

[0047] The working process of this utility model is as follows:

[0048] First, waste acid water is poured into the waste acid water inlet 1-1. The waste acid water falls onto the filter plate 2-3 located inside the shell 1 in the funnel cylinder 2-2. After being filtered by the filter plate 2-3, it falls into the bottom of the shell 1 through the filter discharge pipe 2-4. At the same time, neutralizing agent is added through the neutralizing agent addition pipe 3. The motor 4-2 is started to drive the stirring shaft 4-1 and stirring blade 4-3 to rotate, stirring the filtered waste acid water and the added neutralizing agent. After the required reaction time is reached, the reaction discharge pipe 1-2 is opened to discharge the waste acid water. When the filter plate 2-3 needs to be cleaned, insert the wire hook into the L-shaped inner channel 2-2-5, hook it onto the side wall of the limiting block 2-2-3, and pull the limiting block 2-2-3 out from the limiting notch 1-5-2. Then rotate the funnel cylinder 2-2 so that the limiting block 2-2-3 rotates into another limiting notch 1-5-2. After rotation, the half of the funnel cylinder 2-2 and the filter plate 2-3 inside it, which were originally located inside the housing 1, are rotated to the outside of the housing 1. At the same time, the half of the funnel cylinder 2-2 and the filter plate 2-3 inside it, which were originally located outside the housing 1, are rotated to the inside of the housing 1. At this time, the filter plate 2-3 that needs to be cleaned can be taken out for cleaning, and the device can also work normally at the same time.

[0049] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A waste acid water treatment apparatus, characterized by: Includes a housing (1), the top of which is provided with a waste acid water inlet (1-1), and a funnel-shaped filter (2) is provided on the upper part of the housing (1), with the waste acid water inlet (1-1) located directly above the funnel-shaped filter (2); The funnel-shaped filter (2) includes a funnel cylinder (2-2), and an inner partition (2-1) is fixedly provided inside the funnel cylinder (2-2) along the vertical symmetry plane. The inner partition (2-1) is rotatably connected to the side wall of the housing (1) along the central axis. Multiple semi-circular filter plates (2-3) are detachably provided between the funnel cylinder (2-2) and the inner partition plate (2-1), and a filter discharge pipe (2-4) is provided at the lowest point of the bottom of the funnel cylinder (2-2). A neutralizer addition tube (3) is provided on the side wall of the shell (1), and a stirring device (4) is also provided in the lower part of the shell (1). The neutralizer addition tube (3) is located below the funnel-shaped filter (2), and the stirring device (4) is located below the neutralizer addition tube (3). The bottom of the shell (1) is provided with a post-reaction discharge pipe (1-2).

2. The spent acid water treatment apparatus of claim 1, wherein: The mesh size of the multiple filter plates (2-3) decreases from top to bottom.

3. The spent acid water treatment apparatus of claim 1, wherein: The side wall of the shell (1) is provided with a triangular opening (1-5), the side wall of the funnel cylinder (2-2) is in sealed contact with the side of the triangular opening (1-5), and the inner partition (2-1) is in sealed contact with the upper side of the triangular opening (1-5).

4. The spent acid water treatment apparatus of claim 3, wherein: A first cylinder (2-1-1) is provided in the middle of the upper surface of the inner partition (2-1), and a first sleeve (1-3) is provided on the upper side of the triangular opening (1-5) at a position corresponding to the first cylinder (2-1-1). The first cylinder (2-1-1) is rotatably connected inside the first sleeve (1-3). The bottom end of the funnel cylinder (2-2) is provided with a second cylinder (2-2-1), and the bottom corner of the triangular opening (1-5) is provided with a second sleeve (1-4) at the position corresponding to the second cylinder (2-2-1). The second cylinder (2-2-1) is rotatably connected inside the second sleeve (1-4).

5. The spent acid water treatment apparatus of claim 4, wherein: The funnel tube (2-2) has an annular slide rail (2-2-2) on its circular edge. The upper side of the triangular opening (1-5) has a groove (1-5-1) at a position corresponding to the slide rail (2-2-2). The slide rail (2-2-2) and the groove (1-5-1) are slidably connected and engaged. The slide rail (2-2-2) is provided with a limiting block (2-2-3), and the upper side of the triangular opening (1-5) is provided with a limiting notch (1-5-2) at a position corresponding to the limiting block (2-2-3). The limiting block (2-2-3) and the limiting notch (1-5-2) are engaged and fitted together. One limiting block (2-2-3) is provided, and two limiting notches (1-5-2) are provided, with the two limiting notches (1-5-2) located on both sides of the upper side of the triangular opening (1-5).

6. The spent acid water treatment apparatus of claim 5, wherein: The limiting block (2-2-3) has L-shaped internal channels (2-2-5) on both sides.

7. The spent acid water treatment apparatus of claim 1, wherein: The inner wall of the funnel cylinder (2-2) is provided with an arc-shaped placement groove (2-2-4), and the inner partition (2-1) is provided with a support block (2-1-2). The arc edge of the filter plate (2-3) is placed in the arc-shaped placement groove (2-2-4), and the straight edge of the filter plate (2-3) is placed on the support block (2-1-2).

8. The spent acid water treatment apparatus of claim 1, wherein: There are two filter discharge pipes (2-4), and the two filter discharge pipes (2-4) are located on both sides of the inner partition (2-1). The filter discharge pipes (2-4) and the inner partition (2-1) are inclined to each other, and the outlet of the filter discharge pipes (2-4) is inclined towards the inside of the housing (1).

9. The waste acid water treatment device according to claim 1, characterized in that: The stirring device (4) includes a stirring shaft (4-1), both ends of which are sealed and rotatably connected to the housing (1). One end of the stirring shaft (4-1) passes through the housing (1) and is connected to the output end of the motor (4-2). The motor (4-2) is located on the outer wall of the housing (1). The stirring shaft (4-1) is provided with stirring blades (4-3).

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