Chemical wastewater filtering device for thermal power plant

Abstract

The utility model discloses a thermal power plant chemical waste water filtering device, including collection box, discharge through groove, lifting subassembly, collection box, scraping subassembly, leading subassembly and flashboard structure, collection box is provided on the one side of treatment box, and the collection box is detachably installed on the support frame, the discharge through groove is provided on the side wall of treatment box close to collection box, and the discharge through groove is provided on the other side wall of treatment box close to collection box. The discharging through groove is semicircular, a gate plate structure is arranged on the discharging through groove, the two lifting assemblies are symmetrically arranged on the two sides of the treatment box, and the scraping assembly is arranged on the treatment box. According to the filter plate dismounting structure for the chemical wastewater filtering treatment device, the problems that in the prior art, when impurities on a filter plate are cleaned, the impurities on the filter plate need to be manually cleaned and removed, labor is wasted, and certain damage is caused to workers are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment device technical field, concretely relates to a thermal power plant chemical wastewater filtering device. BACKGROUND

[0002] Thermal power plant is the factory that combustible (such as coal, petroleum, natural gas etc.) heat energy produced when burning is converted into electric energy through power generation power device, after burning, thermal power plant will produce a large amount of chemical wastewater, and thermal power plant chemical wastewater refers to the wastewater produced in chemical water treatment and related production of thermal power plant, and chemical wastewater mainly includes acid-base wastewater, contains wastewater or contains heavy metal wastewater etc., and part of factory will discharge the chemical wastewater produced to natural water, but will treat it before discharging, and can be discharged naturally after detecting that there is no pollution element in wastewater.

[0003] When treating chemical wastewater, the common chemical wastewater treatment method is neutralization method, if chemical wastewater is acidic, can add alkaline neutralizing agent, such as lime, sodium hydroxide etc., if chemical wastewater is alkaline, then can add acidic neutralizing agent, such as sulfuric acid, hydrochloric acid etc., through neutralization reaction, the PH value of chemical wastewater reaches discharge standard, before neutralizing, because coal, petroleum etc. are burned when thermal power plant works, therefore, chemical wastewater contains a large amount of ash or slag fragments and other impurities, before treating chemical wastewater with medicine, then the ash or slag fragments and other impurities in chemical wastewater need to be filtered, and the ash or slag fragments and other impurities are cleaned out, so that the effect of treating chemical wastewater is ensured.

[0004] When filtering the ash or slag fragments and other impurities in chemical wastewater, the existing filtering technology usually transports chemical wastewater to the treatment box provided with filter plate, after chemical wastewater passes through filter plate, the ash or slag fragments and other impurities are intercepted by filter plate, and chemical wastewater flows down through the mesh hole of filter plate, after filtering, the ash or slag fragments and other impurities retained on filter plate need to be cleaned, so as to avoid accumulation and blockage when filtering chemical wastewater again, and the existing cleaning method is manual cleaning, the ash or slag fragments and other impurities are cleaned manually, which is not only laborious, but also the chemical wastewater adhered to the surface of ash or slag fragments and other impurities has certain toxin, if the protection of staff is not proper or the frequency of contacting impurities is too high, the body of operator is easily damaged, therefore, the existing chemical wastewater filtering technology still needs to be further improved. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] The utility model provides a kind of chemical wastewater filter device of thermal power plant to solve the problem that the impurities on filter plate are cleaned in prior art, and the impurities on filter plate are cleaned manually, not only laborious but also certain damage to human tool.

[0007] (II) Technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme:

[0009] A kind of chemical wastewater filter device of thermal power plant, including processing box, the filter plate is installed in the processing box, and the bottom end of the processing box is equipped with support frame, the filter plate is set to half cylinder, further including collection box, discharge channel, lifting assembly, collection box, scraping assembly, material guiding assembly and gate structure, the collection box is arranged at one side of the processing box, and the collection box is detachably installed on the support frame, the side wall of the processing box near collection box is equipped with discharge channel, the discharge channel is set to half circle, the lifting assembly is provided with two, two the lifting assembly is symmetrically arranged at the two sides of the processing box, for controlling the lifting of the filter plate, the scraping assembly is arranged on the processing box, for the impurities on the filter plate to be scraped to the collection box, the gate structure is arranged on the scraping assembly, for controlling the opening and closing of the discharge channel.

[0010] Further, the lifting assembly includes electric cylinder one and lifting frame, two electric cylinder ones are installed on the two sides of the processing box, and the output end of the electric cylinder one is fixedly connected with the top end of the filter plate through the lifting frame.

[0011] Further, the scraping assembly includes scraping plate, driving assembly and material guiding assembly, the scraping plate is arranged in the processing box, the driving assembly is arranged on the processing box, for driving scraping plate to move on processing plate, the material guiding assembly is arranged between the processing box and the collection box, for making impurities fall into the collection box when the scraping assembly scrapes impurities.

[0012] Further, the driving assembly further includes mounting bracket, screw rod, motor, driving plate, optical axis and sliding block, the mounting bracket is fixedly installed on the top end of the processing box, the screw rod is rotatably installed on the mounting bracket, and the screw rod is parallel to the axis of the filter plate, the motor is installed on the mounting bracket, and the output end of the motor is coaxially connected with the screw rod, the driving plate is threadedly connected on the screw rod, and the scraping plate is fixedly installed on the bottom end of the driving plate, the optical axis is fixedly installed on the mounting bracket, and optical axis is parallel to the screw rod, the sliding block is slidably sleeved on the optical axis, and the bottom end of the sliding block is fixedly connected with the top end of the driving plate.

[0013] Further, the material guiding assembly comprises an inclined plate and a baffle, the inclined plate is arranged between the treatment box and the collection box, and the inclined plate is inclined to the top end of the collection box by the discharging channel, and the baffle is provided with the baffle on both sides.

[0014] Still further, the shutter structure comprises an opening and closing plate and a second electric cylinder, the opening and closing plate is arranged above the discharging channel and used for blocking the discharging channel, and the second electric cylinder is arranged on the mounting frame, and the bottom end of the second electric cylinder is connected with the top end of the opening and closing plate.

[0015] Still further, the material scraping plate is arranged in a semicircular shape, and the curvature of the material scraping plate is consistent with the curvature of the filter plate.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a chemical wastewater filter device for thermal power plant has the following beneficial effects:

[0018] In the utility model, when a certain impurity is accumulated on the filter plate, the filter plate can be slowly lifted to the discharging channel of the treatment box through the lifting assembly, when there is no wastewater flow, then the discharging channel of the treatment box is opened through the shutter structure, finally the impurities such as ash and slag pieces on the filter plate are scraped into the collection box through the material scraping assembly, the impurities can be effectively transported into the collection box through the material guiding assembly, avoiding the impurities from scattering outward, compared with the prior art, through the mutual cooperation between the lifting assembly, the collection box, the material scraping assembly, the material guiding assembly and the shutter structure, the ash and slag pieces in the wastewater can be filtered out, and the ash and slag pieces in the filter plate can be directly scraped into the collection box for integrated collection, the impurity cleaning efficiency on the filter plate is improved, the frequency of the operator contacting the chemical wastewater is reduced, so that the damage of the chemical wastewater and the impurities to the operator's body is reduced. ACCURACY

[0019] Figure 1 It is the whole structure schematic view of the utility model;

[0020] Figure 2 It is the structure schematic view of the filter plate and the lifting assembly cooperation of the utility model;

[0021] Figure 3 It is the structure schematic view of the material scraping assembly and the shutter structure cooperation of the utility model;

[0022] Figure 4 It is the structure schematic view of the material guiding assembly, the supporting frame, the treatment box and the collection box cooperation of the utility model;

[0023] Figure 5 Figure 1 is a structural schematic view of the utility model;

[0024] Figure 6 Figure 2 is a structural schematic view of the utility model;

[0025] Figure 7 Figure 3 is a structural schematic view of the utility model.

[0026] In the figure: 1, support frame; 2, processing box; 3, filter plate; 4, collection box; 5, funnel; 6, water outlet pipe two; 7, valve; 8, water outlet pipe one; 9, forklift cover; 101, electric cylinder one; 102, lifting frame; 201, mounting frame; 202, screw rod; 203, motor; 204, driving plate; 301, scraping plate; 302, optical axis; 303, sliding block; 401, inclined plate; 402, baffle; 501, opening and closing plate; 502, electric cylinder two. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figures 1 to 7The utility model provides a kind of chemical wastewater filter device of thermal power plant, including processing box 2, filter plate 3 is installed in processing box 2, and the bottom end of processing box 2 is installed with support frame 1, filter plate 3 is set as half cylinder, further including collection box 4, discharge channel, lifting assembly, collection box 4, material scraping assembly, material guiding assembly and gate structure, collection box 4 is set in one side of processing box 2, and collection box 4 is detachably installed on support frame 1, and the bottom end of processing box 2 is provided with water outlet pipe one 8, valve 7 is installed on water outlet pipe one 8, discharge channel is set in the side wall of processing box 2 close to collection box 4, discharge channel is set as half circle, lifting assembly is provided with two, two lifting assemblies are symmetrically set in the two sides of processing box 2, for controlling the lifting of filter plate 3, material scraping assembly is set on processing box 2, for the impurity on filter plate 3 is scraped to collection box 4, material guiding assembly is set between processing box 2 and collection box 4, for when impurity is scraped by material scraping assembly, impurity falls into collection box 4, gate structure is set on material scraping assembly, for controlling the opening and closing of discharge channel, when filter plate 3 accumulates certain impurity, filter plate 3 can be slowly lifted to the discharge channel of processing box 2 by lifting assembly, when there is no wastewater flow, then the discharge channel of processing box 2 is opened by gate structure, finally, the impurities such as ash and slag pieces on filter plate 3 are scraped to collection box 4 by material scraping assembly, impurities can be effectively transported into collection box 4 by material guiding assembly, avoid impurities to scatter out, compared with prior art, the chemical wastewater filter device can filter out ash and slag pieces in wastewater by the cooperation between lifting assembly, collection box 4, material scraping assembly, material guiding assembly and gate structure, and can directly scrape ash and slag pieces in filter plate 3 into collection box 4 for integrated collection, improve the impurity cleaning efficiency on filter plate 3, reduce the frequency of operator contacting chemical wastewater, thereby reduce the damage of chemical wastewater and impurities to operator's body.

[0029] On the basis of the foregoing scheme, further, please refer to Figure 1 、 Figure 4 and Figure 5The filter plate 3 is fixedly installed in the collecting box 4, and the lower side of the collecting box 4 is provided with a funnel 5, and the bottom end of the funnel 5 is communicated with a water outlet pipe two 6, and the valve 7 is also installed on the water outlet pipe two 6. When the filter plate 3 is lifted, the lifting group slowly drives the filter plate 3 to move upwards, reduces the possibility of chemical wastewater flowing outward, and under the action of the gate plate structure, the chemical wastewater on the filter plate 3 is returned to the inside of the treatment box 2 as much as possible. Due to the semi-cylindrical arrangement of the filter plate 3, after the filter plate 3 is lifted upwards, there is space between the side wall position of the filter plate 3 and the inner wall of the treatment box 2, so as to facilitate the return of the chemical wastewater to the inside of the treatment box 2. Since the impurities carry a certain amount of chemical wastewater, the filter plate installed in the collecting box 4 can further filter the chemical wastewater in the impurities, and the chemical wastewater is transported to the next chemical wastewater treatment process through the water outlet pipe two 6 and the water outlet pipe one 8.

[0030] In this embodiment, please refer to Figure 2 The lifting assembly includes an electric cylinder one 101 and a lifting frame 102. Two electric cylinders one 101 are installed on the two sides of the treatment box 2. The output end of the electric cylinder one 101 is fixedly connected with the top end of the filter plate 3 through the lifting frame 102. By controlling the extendable action of the electric cylinder, the filter plate 3 can be driven to move upwards. The end of the filter plate 3 is always attached to the inner side wall of the treatment box 2.

[0031] In this embodiment, please refer to Figure 3 The scraping assembly includes a scraping plate 301, a driving assembly and a material guiding assembly. The scraping plate 301 is arranged in the inside of the treatment box 2. The driving assembly is arranged on the treatment box 2 and is used to drive the scraping plate 301 to move on the treatment plate. The driving assembly further includes a mounting frame 201, a screw rod 202, a motor 203, a driving plate 204, an optical shaft 302 and a sliding block 303. The mounting frame 201 is fixedly installed on the top end of the treatment box 2. The screw rod 202 is rotatably installed on the mounting frame 201 and is parallel to the axis of the filter plate 3. The motor 203 is installed on the mounting frame 201 and is coaxially connected with the screw rod 202 at the output end. The driving plate 204 is threadedly connected on the screw rod 202, and the scraping plate 301 is fixedly installed on the bottom end of the driving plate 204. The optical shaft 302 is fixedly installed on the mounting frame 201 and is parallel to the screw rod 202. The sliding block 303 is slidably sleeved on the optical shaft 302, and the bottom end of the sliding block 303 is fixedly connected with the top end of the driving plate 204. The material guiding assembly is arranged between the treatment box 2 and the collecting box 4 and is used to make the impurities fall into the collecting box 4 when the impurities are scraped by the scraping assembly.

[0032] It needs to be explained that the scraper 301 is attached to the inner side wall of the treatment box 2, and the scraper 301 is located at the same horizontal position as the discharge slot of the treatment box 2, the bottom end of the scraper 301 is knife-shaped, which facilitates the scraper 301 to better cut into the edge of impurities on the filter plate 3 after the filter plate 3 is lifted, and the scraper 301 is also set to be semicircular, the curvature of the scraper 301 is consistent with the curvature of the filter plate 3, when the filter plate 3 is lifted upward, the outer side wall of the scraper 301 is attached to the inner side wall of the filter plate 3, which is used to more completely push the impurities on the filter plate 3 to the direction of the collection box 4.

[0033] In this embodiment, please refer to Figure 4 , the guide assembly includes an inclined plate 401 and a baffle 402, the inclined plate 401 is arranged between the treatment box 2 and the collection box 4, and the inclined plate 401 is inclined from the discharge slot to the top end of the collection box 4, the baffle 402 is installed on both sides of the inclined plate 401, the collection box 4 is located below the side of the inclined plate 401, and the length of the inclined plate 401 is longer than the diameter of the discharge slot of the treatment box 2, so that the impurities in the filter plate 3 can be completely contacted with the inclined plate 401 and then slide into the collection box 4 when being pushed to the outside of the discharge slot, the impurities can slide into the collection box 4 through the inclined plate 401, and the baffle 402 on both sides can ensure that the impurities will not be scattered at both ends of the inclined plate 401, please refer to Figure 3 , the gate structure includes an opening and closing plate 501 and an electric cylinder 502, the opening and closing plate 501 is arranged above the discharge slot for blocking the discharge slot, the electric cylinder 502 is installed on the mounting frame 201, and the bottom output end of the electric cylinder 502 is connected with the top end of the opening and closing plate 501, and a slot is arranged in the discharge slot, the opening and closing plate 501 can be inserted into the slot of the discharge slot, so that when the filter plate 3 is lifted, the opening and closing plate 501 is inserted into the slot of the discharge slot, which can be closed, thereby avoiding the chemical wastewater from flowing out.

[0034] Working principle: when the impurities in the chemical wastewater are filtered, firstly start the electric cylinder one 101, the electric cylinder one 101 drives the lifting rod to move down, the lifting rod drives the filter plate 3 to move down to the lower point in the treatment box 2, then start the electric cylinder two 502, the electric cylinder two 502 drives the opening and closing plate 501 to move down, inserts the opening and closing plate 501 into the insertion slot of the feeding and discharging channel, so as to close it, then pour the chemical wastewater into the filter plate 3, the impurities are retained on the filter plate 3, wait for a period of time, then the chemical wastewater flows to the inner bottom end of the treatment box 2, then start the electric cylinder one 101 again, so as to drive the filter plate 3 to slowly move up, in the process of moving up, part of the chemical wastewater will fall again to the bottom of the treatment box 2, when the filter plate 3 moves to the scraping plate 301, the outer side wall of the scraping plate 301 is attached to the inner side wall of the filter plate 3, then start the electric cylinder two 502, lift the opening and closing plate 501, open the discharging channel, start the motor 203, the motor 203 drives the screw rod 202 to rotate on the mounting frame 201, so as to drive the scraping plate 301 to move on the filter plate 3, and the driving plate 204 synchronously drives the sliding block 303 to move on the light shaft 302, so as to limit the driving plate 204 to move left and right, the impurities on the filter plate 3 are scraped to the inclined plate 401 through the discharging channel, and then slide to the collecting box 4 through the inclined plate 401, when the impurities enter the collecting box 4, the impurities are retained on the filter plate, and the chemical wastewater adhered to the impurities enters the funnel 5 and the water outlet pipe two 6 through the filter plate, then the chemical wastewater in the treatment box 2 enters the water outlet pipe one 8, and the chemical wastewater is transported to the next chemical wastewater treatment process through the water outlet pipe two 6 and the water outlet pipe one 8, when the impurities in the collecting box 4 are cleaned, the collecting box 4 can be disassembled, then the collecting box 4 is forked away by the forklift, it needs to be pointed out that the forklift sleeve 9 is installed on the two sides of the collecting box 4, the forklift can move the collecting box 4 outward by inserting into the forklift sleeve 9 and moving to the designated position.

[0035] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A chemical wastewater filtering device for a thermal power plant, comprising a processing box (2), a filter plate (3) is installed in the processing box (2), and a supporting frame (1) is installed at the bottom end of the processing box (2), characterized in that, The filter plate (3) is provided as a semi-cylindrical shape, and further comprises: A collection box (4) is provided on one side of the processing box (2), and the collection box (4) is detachably mounted on the support frame (1); A discharge slot is formed on the side wall of the processing box (2) near the collection box, and the discharge slot is provided as a semicircular shape; Two lifting assemblies are symmetrically arranged on both sides of the processing box (2) for controlling the lifting of the filter plate (3); A scraping assembly is arranged on the processing box (2) for scraping the impurities on the filter plate (3) into the collection box (4); A shutter structure is arranged on the scraping assembly for controlling the opening and closing of the discharge slot.

2. A device for filtering chemical wastewater of a thermal power plant according to claim 1, characterized in that, The lifting assembly comprises: Two electric cylinders (101) are arranged on both sides of the processing box (2); A lifting frame (102) is fixedly connected between the output end of the electric cylinder (101) and the top end of the filter plate (3).

3. A device for filtering chemical wastewater of a thermal power plant according to claim 2, characterized in that, The scraping assembly comprises: A scraping plate (301) is arranged inside the processing box (2); A driving assembly is arranged on the processing box (2) for driving the scraping plate (301) to move on the processing plate; A material guiding assembly is arranged between the processing box (2) and the collection box (4) for making the impurities fall into the collection box (4) when the scraping assembly scrapes the impurities.

4. The chemical wastewater filtering device of a thermal power plant according to claim 3, characterized in that, The driving assembly further comprises: A mounting frame (201) is fixedly mounted on the top end of the processing box (2); A screw rod (202) is rotatably mounted on the mounting frame (201), and the screw rod (202) is parallel to the axis of the filter plate (3); A motor (203) is mounted on the mounting frame (201), and the output end of the motor (203) is coaxially connected with the screw rod (202); A driving plate (204) is threadedly connected with the screw rod (202), and the scraping plate (301) is fixedly mounted on the bottom end of the driving plate (204); An optical axis (302) is fixedly mounted on the mounting frame (201), and the optical axis is parallel to the screw rod (202); A sliding block (303) is slidably sleeved on the optical axis (302), and the bottom end of the sliding block (303) is fixedly connected with the top end of the driving plate (204).

5. A device for filtering chemical wastewater of a thermal power plant according to claim 4, characterized in that, The material guiding assembly comprises: An inclined plate (401) is arranged between the processing box (2) and the collection box (4), and the inclined plate (401) is inclined from the discharge slot to the top end of the collection box (4); A baffle (402) is arranged on both sides of the baffle (402).

6. A device for filtering chemical wastewater of a thermal power plant according to claim 5, characterized in that, The shutter structure comprises: An opening and closing plate (501) is arranged above the discharge chute to block the discharge chute; An electric cylinder two (502) is mounted on the mounting frame (201), and the bottom output end of the electric cylinder two (502) is connected with the top end of the opening and closing plate (501).

7. A device for filtering chemical wastewater of a thermal power plant according to claim 6, characterized in that, The scraping plate (301) is arranged in a semicircular shape, and the curvature of the scraping plate (301) is consistent with the curvature of the filter plate (3).

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