A chemical wastewater treatment device

Abstract

The utility model discloses a chemical wastewater treatment device, which relates to the technical field of chemical wastewater treatment, and comprises a primary filter pool and a secondary filter pool arranged side by side, wherein the upper ends of the primary filter pool and the secondary filter pool are connected via a through slot, wherein the primary filter pool is provided with a primary filter screen, a medicine conveying device and a mud pushing device in sequence from top to bottom, wherein a liquid inlet is provided on the side wall of the primary filter pool, a liquid discharge port is provided on the side wall of the secondary filter pool, and a filter box is provided in the secondary filter pool, wherein the upper opening of the filter box and the primary filter screen are both lower than the through slot; the utility model can effectively remove suspended impurities and tiny impurities in wastewater, prolong the clogging time of the primary filter screen, and can also filter floating debris, thereby greatly improving the filtering efficiency of impurities in wastewater and also improving the filtering effect of wastewater.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical wastewater treatment, in particular to a chemical wastewater treatment device. Background Art

[0002] Chemical wastewater refers to process wastewater, cooling water, exhaust gas washing water, equipment and site flushing water, etc. discharged in chemical production. If these wastewaters are discharged without treatment, they will cause pollution of different properties and degrees in the water body, thus endangering human health and affecting industrial and agricultural production.

[0003] Patent application number CN202321401302.0 discloses an integrated automatic treatment device for chemical wastewater, which includes a device body, a sedimentation tank is arranged on the outermost layer of the device body, a water outlet is installed at the lower left end of the front side of the sedimentation tank, a water inlet pipe is installed at the right end of the front side of the sedimentation tank, and the rear side of the water inlet pipe is connected to the water inlet, sliding blocks are installed at the left and right ends of the front and rear sides of the sedimentation tank, and the left and right ends of the sedimentation tank are provided with placement grooves, and an electric lifting rod is installed inside the placement groove. A filter box is installed inside the sedimentation tank, and filter screens are installed on the front and rear bottom sides of the filter box. The left and right ends of the filter box are provided with a filter screen, and the filter screen is installed on the left and right ends of the filter box. A fixed block is installed on the right end, and slide grooves are provided at the front and rear ends of the fixed blocks at both ends; this scheme utilizes the filter box and the electric lifting rod in the device to move the filter box, thereby separating impurities from liquid, facilitating the cleaning of impurities, and solving the problem that impurities that have sunk to the bottom cannot be cleaned; however, this device can only filter out large particles of sediment in the wastewater, and it is difficult to filter out some particles suspended in the wastewater, and after long-term filtration, impurities will be deposited at the bottom of the filter screen, reducing the filtration area of ​​the filter screen. Impurities are also easy to clog the filter screen, affecting the filtration efficiency. For this reason, the present application proposes a chemical wastewater treatment device. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a chemical wastewater treatment device which reduces the frequency of filter screen replacement and aims at improving the filtering efficiency.

[0005] In order to solve the above technical problems, the utility model includes a primary filter pool and a secondary filter pool arranged side by side, the upper ends of the primary filter pool and the secondary filter pool are connected through a through slot, the primary filter pool is provided with a primary filter screen, a drug delivery device and a mud pushing device from top to bottom, the side wall of the primary filter pool is provided with a liquid inlet, the side wall of the secondary filter pool is provided with a liquid discharge port, a filter box is provided in the secondary filter pool, and the upper opening of the filter box and the primary filter screen are both lower than the through slot;

[0006] The medicine delivery device comprises a delivery main pipe, both ends of which are movably connected to the primary filter tank, one end of which is connected to the negative pressure feeder through a hose, and the other end of which is transmission-connected to the first motor, and a plurality of circumferentially distributed delivery branches are arranged on the delivery main pipe, and the delivery branches are connected to the delivery main pipe;

[0007] The mud pushing device comprises a mud pushing plate, both ends of which are threadedly connected with a screw rod, both ends of which are movably connected to a primary filtering pool, and one end of which is transmission-connected with a second motor.

[0008] Preferably, the outlet of the delivery branch pipe is provided with a rubber sleeve, and the rubber sleeve is provided with a discharge port.

[0009] Preferably, a sewage outlet is provided at the bottom of the side wall of the primary filter tank, and a baffle is provided at the sewage outlet, one side of the baffle is movably connected to the primary filter tank, and the other side of the baffle is fixed to the primary filter tank by bolts.

[0010] Preferably, an inclined plate is provided on the inner wall of the primary filtration tank below the liquid inlet, and two inclined plates are provided and are symmetrically arranged, with a gap between the two inclined plates.

[0011] Preferably, a support bar is provided on the primary filter tank, and the primary filter screen is fixedly connected to the support bar by bolts.

[0012] Preferably, the filter box comprises a box shell, a secondary filter screen is arranged at the bottom of the box shell, an upper opening of the box shell is fixedly connected to a cross support rod, and a hanging ring is fixedly connected to the cross support rod.

[0013] Preferably, a support ring bar is fixedly connected inside the secondary filtration tank, and the bottom of the box shell is supported and connected to the support ring bar.

[0014] The beneficial effects of the utility model are as follows: the medicine conveying device in the utility model adds medicine into the primary filter tank, accelerates the precipitation of impurities in the wastewater, and uses the mud pushing device to push out the precipitated impurities. In the process of adding wastewater, the wastewater rises, and after being filtered by the primary filter net, it flows into the secondary filter tank through the through groove and is filtered by the filter box, which can effectively remove suspended impurities and tiny impurities in the wastewater, prolong the clogging time of the primary filter net, and can also filter floating debris at the same time, greatly improving the filtration efficiency of impurities in the wastewater, and also improving the filtration effect of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0016] Figure 2 for Figure 1Schematic cross-sectional view of ;

[0017] Figure 3 It is a three-dimensional schematic diagram of the medicine delivery device of the present utility model.

[0018] In the figure: 1. primary filter tank; 2. secondary filter tank; 3. through slot; 4. primary filter screen; 5. drug delivery device; 51. delivery main pipe; 52. hose; 53. negative pressure feeder; 54. first motor; 55. delivery branch pipe; 56. rubber sleeve; 57. discharge port; 6. liquid inlet; 7. liquid discharge port; 8. filter box; 81. box shell; 82. secondary filter screen; 83. cross support rod; 84. lifting ring; 9. mud pusher; 10. screw rod; 11. second motor; 12. sewage outlet; 13. baffle; 14. tilting plate; 15. support bar; 16. support ring bar. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. All directional indications in the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] like Figure 1-3 As shown, this embodiment provides a chemical wastewater treatment device, including a primary filter tank 1 and a secondary filter tank 2 arranged side by side, the upper ends of the primary filter tank 1 and the secondary filter tank 2 are connected by a through groove 3, the through groove 3 is lower than the upper opening of the primary filter tank 1, the primary filter tank 1 is provided with a primary filter screen 4, a drug delivery device 5 and a mud pushing device from top to bottom, the side wall of the primary filter tank 1 is provided with a liquid inlet 6, the liquid inlet 6 is used to be connected to a wastewater pipe, and sewage is added to the primary filter tank 1 through the wastewater pipe, the side wall of the secondary filter tank 2 is provided with a drain port 7, a filter box 8 is provided in the secondary filter tank 2, and the upper opening of the filter box 8 and the primary filter screen 4 are both lower than the through groove 3.

[0021] like Figure 3As shown, the drug delivery device 5 includes a delivery main pipe 51, which is a seamless steel pipe. Both ends of the delivery main pipe 51 are movably connected to the primary filter tank 1. One end of the delivery main pipe 51 is connected to a negative pressure feeder 53 through a hose 52. The other end of the delivery main pipe 51 is transmission-connected to a first motor 54. A plurality of circumferentially distributed delivery branches 55 are provided on the delivery main pipe 51. The delivery branches 55 are connected to the delivery main pipe 51. The negative pressure feeder 53 delivers drugs, such as flocculants, into the delivery main pipe 51 to accelerate the precipitation of suspended impurities in the wastewater. Chemical reaction agents can also be added to react with harmful substances in the wastewater to remove the harmful substances in the wastewater. Harmful substances, at the same time, the first motor 54 drives the conveying main pipe 51 to rotate, and the conveying branch pipe 55 is rotated so that the conveying branch pipe 55 can stir the wastewater, and at the same time, the agent can be fully sprinkled into the wastewater, and in the process of sewage treatment, the conveying branch pipe 55 is always in a high-pressure state, so that the pressure in the conveying branch pipe 55 is greater than the water pressure, thereby preventing water from entering the conveying branch pipe. A rubber sleeve 56 can also be provided at the outlet of the conveying branch pipe 55, and a discharge port 57 is opened on the rubber sleeve 56. The elasticity of the rubber sleeve 56 has a squeezing strength on the discharge port 57 on the rubber sleeve 56 that is greater than the water pressure, which can also prevent water from entering the conveying branch pipe 55.

[0022] like Figure 1-2 As shown, the mud pushing device includes a mud pushing plate 9, both ends of the mud pushing plate 9 are threadedly connected with a screw rod 10, both ends of the screw rod 10 are movably connected to the primary filter tank 1, and one end of the screw rod 10 is transmission-connected to a second motor 11, a sewage outlet 12 is provided at the bottom of the side wall of the primary filter tank 1, and a baffle 13 is provided at the sewage outlet 12, one side of the baffle 13 is movably connected to the primary filter tank 1, and the other side of the baffle 13 is fixed to the primary filter tank 1 by bolts, after a certain amount of impurities are precipitated, the baffle 13 is opened, and the second motor 11 drives the screw rod 10 to rotate The second motor 11 drives the mud pushing plate 9 to move, and pushes the impurity sludge out of the sewage outlet 12 to achieve the purpose of mud discharge. After the mud pushing plate 9 is pushed out, the second motor 11 reverses and drives the screw rod 10 to rotate in the opposite direction, thereby returning the mud pushing plate 9 to its original position and completing a mud pushing process. According to the speed of sludge accumulation in sewage, each time the mud is pushed, the sludge height is not higher than the highest point of the mud pushing plate 9. The PLC is used to control the motor, and the second motor 11 is used to drive the mud pushing plate 9 to move back and forth, so as to achieve a cyclic and continuous mud pushing operation, thereby realizing the purpose of periodic sludge discharge.

[0023] like Figure 2As shown, an inclined plate 14 is provided on the inner wall of the primary filter tank 1 below the liquid inlet 6. The inclined plates 14 are arranged in two and are symmetrically arranged. A gap is left between the two inclined plates 14. The precipitated impurities are introduced to the bottom of the inclined plates 14 through the inclined plates 14. When the delivery branch pipe 55 stirs the wastewater, the disturbance of the impurities precipitated at the bottom is reduced. At the same time, when compressed air is pressed into the delivery branch pipe 55, the impurities deposited on the inclined plates 14 can be blown to the bottom by the compressed air.

[0024] A support bar 15 is provided on the primary filter tank 1, and the primary filter screen 4 is fixedly connected to the support bar 15 by bolts, so as to support and fix the primary filter screen 4, and facilitate disassembly and installation.

[0025] like Figure 2 As shown, the filter box 8 includes a box shell 81, and a secondary filter screen 82 is arranged at the bottom of the box shell 81. The upper opening of the box shell 81 is fixedly connected with a cross support rod 83, and a hanging ring 84 is fixedly connected to the cross support rod 83. A support ring bar 16 is fixedly connected in the secondary filter pool 2. The bottom of the box shell 81 is supported and connected with the support ring bar 16. The hanging ring 84 is used to conveniently lift the filter box 8 to pour out impurities. The box shell 81 can also adopt a mesh structure to achieve the effect of side wall filtering. The size of the filter box 8 is smaller than the size of the secondary filter pool 2, and the outer side wall of the upper end of the box shell 81 is sealed and connected to the secondary filter pool 2.

[0026] Its working principle is as follows: adding reagents into the primary filter tank 1 through the reagent delivery device 5 to accelerate the precipitation of impurities in the wastewater, and using the mud pushing device to push out the precipitated impurities. During the process of adding wastewater, the wastewater rises, and after being filtered by the primary filter net 4, it flows into the secondary filter tank 2 through the through groove 3 and is filtered by the filter box 8. It can effectively remove suspended impurities and tiny impurities in the wastewater, reduce the probability of clogging of the primary filter net 4, and at the same time filter floating debris, which greatly improves the filtration efficiency of impurities in the wastewater and also improves the filtration effect of the wastewater.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical wastewater treatment device, characterized in that: The invention comprises a primary filter tank and a secondary filter tank arranged side by side, wherein the upper ends of the primary filter tank and the secondary filter tank are connected via a through slot, and the primary filter screen, a drug delivery device and a mud pushing device are sequentially arranged from top to bottom in the primary filter tank, a liquid inlet is arranged on the side wall of the primary filter tank, a liquid discharge port is arranged on the side wall of the secondary filter tank, a filter box is arranged in the secondary filter tank, and the upper opening of the filter box and the primary filter screen are both lower than the through slot, the drug delivery device comprises a delivery main pipe, both ends of which are movably connected to the primary filter tank, one end of which is connected to a negative pressure feeder via a hose, and the other end of which is transmission-connected to a first motor, and a plurality of circumferentially distributed delivery branches are arranged on the delivery main pipe, and the delivery branches are connected to the delivery main pipe; the mud pushing device comprises a mud pushing plate, both ends of which are threadedly connected to a screw rod, both ends of which are movably connected to the primary filter tank, and one end of which is transmission-connected to a second motor.

2. A chemical wastewater treatment device according to claim 1, characterized in that: The outlet of the conveying branch pipe is provided with a rubber sleeve, and the rubber sleeve is provided with a discharge port.

3. A chemical wastewater treatment device according to claim 1, characterized in that: A sewage outlet is provided at the bottom of the side wall of the primary filter tank, and a baffle is provided at the sewage outlet. One side of the baffle is movably connected to the primary filter tank, and the other side of the baffle is fixed to the primary filter tank by bolts.

4. A chemical wastewater treatment device according to claim 1, characterized in that: An inclined plate is arranged on the inner wall of the primary filtration tank below the liquid inlet, and two inclined plates are arranged symmetrically, with a gap between the two inclined plates.

5. A chemical wastewater treatment device according to claim 1, characterized in that: The primary filter tank is provided with support bars, and the primary filter screen is fixedly connected to the support bars by bolts.

6. A chemical wastewater treatment device according to claim 1, characterized in that: The filter box comprises a box shell, a secondary filter screen is arranged at the bottom of the box shell, a cross support rod is fixedly connected to the upper opening of the box shell, and a hanging ring is fixedly connected to the cross support rod.

7. A chemical wastewater treatment device according to claim 6, characterized in that: A supporting ring bar is fixedly connected in the secondary filtering tank, and the bottom of the box shell is supported and connected with the supporting ring bar.

Images