Acid-alkali wastewater oxidation and precipitation combined treatment equipment

Abstract

The utility model relates to oxidation and precipitation combined treatment equipment for acid-alkali wastewater. The device comprises a wastewater filtering tank, a sewage filtering and scraping unit is fixedly mounted on the inner side surface of the wastewater filtering tank, the sewage filtering and scraping unit comprises a scraping protection plate, a filter screen and a pushing blade, and a sewage strong oxidation absorption unit is arranged on the right side surface of the wastewater filtering tank. The sewage strong oxidation absorption unit comprises a polymerization sleeve, a differentiation mixing block, an oxidant spraying device and an extraction pipe; when sewage is poured into the wastewater filtering tank, the sewage is filtered in cooperation with a filter screen, meanwhile, the entering sewage is compressed and polymerized in cooperation with a polymerization impact protection cylinder, the compressed water source can generate large impact force, the impacted water source can be attached to the surface of a pushing blade, and the impact force is increased. As the surfaces of the pushing blades are inclined planes, the water source can slide on the surfaces of the pushing blades, and the inclined planes of the pushing blades are utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater oxidation treatment, in particular to acid and alkali wastewater oxidation and precipitation combined treatment equipment. Background Art

[0002] In recent years, with the vigorous development of industry and agriculture, the discharge of high-concentration ammonia nitrogen organic wastewater has increased sharply. The sources of high-concentration ammonia nitrogen organic wastewater are wide, including wastewater discharged from food processing, breeding and chemical industries, and leachate from garbage. In addition to containing a large amount of easily degradable soluble organic pollutants, high-concentration ammonia nitrogen organic wastewater often also contains persistent or toxic organic pollutants, which pose great harm to the ecological environment and human health. Wastewater treatment technologies include biochemical method, absorption method, oxidation method, plasma purification method, coagulation sedimentation method, adsorption method, etc.

[0003] A Chinese patent with publication number CN205550293U discloses an oxidation tower of a Fenton oxidation wastewater treatment device, comprising a bottom plate, an air source stirring tube, a water inlet pipe and a tower body; the tower body comprises an outer wall plate and an inner wall guide plate, and the middle and lower part of the tower body is a reaction area; a static separation area is provided between the inner wall guide plate and the outer wall plate, and an upper guide plate and an inner bottom guide plate are provided on the inner wall guide plate; an outer bottom guide plate and an outlet weir plate are provided on the inner side surface of the outer wall plate, and an outlet water collecting trough connected to the outlet weir plate is provided on the outer side surface of the outer wall plate, and a crystal discharge hole is also provided at the bottom of the outer wall plate; the water inlet pipe is located above the air source stirring tube, and both are arranged inside the tower body. The oxidation tower of this Fenton oxidation wastewater treatment device can reduce operating costs, improve operating stability and efficiency, and save operating energy consumption.

[0004] In the current existing technology, when the existing sewage is oxidized, if there are too many impurities inside the sewage, it will affect the efficiency of the strong oxidant in oxidizing and decomposing the pollutants in the wastewater. The impurities inside the sewage need to be filtered first. However, the sewage contains too many impurities, bacteria and microorganisms, etc., which can easily clog the surface of the filter, resulting in low sewage filtration efficiency. After the sewage is mixed with the strong oxidant, compounds such as oxidized sulfuric acid and some fixed impurities will be produced. These impurities will accumulate inside the tank. If they are not cleaned in time, they will cause blockage inside the tank.

[0005] To this end, the utility model provides acid and alkali wastewater oxidation and precipitation combined treatment equipment. Utility Model Content

[0006] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that when the existing sewage is subjected to strong oxidation, if there are too many impurities inside, the efficiency of the strong oxidation treatment is relatively low, and when the impurities are cleaned, the impurities adhering to the inside cannot be effectively and fully cleaned, which will cause blockage.

[0007] In order to solve the above technical problems, the utility model provides a treatment device for acid and alkali wastewater combined with oxidation and precipitation.

[0008] In one embodiment of the present invention, it includes a wastewater filter tank, on the inner surface of which a sewage filter scraping unit is fixedly installed, the sewage filter scraping unit includes a scraping guard plate, a filter screen and a push blade, and a sewage strong oxidation absorption unit is provided on the right surface of the wastewater filter tank, the sewage strong oxidation absorption unit includes a polymerization sleeve, a differentiation mixing block, an oxidant sprayer and an extraction pipe.

[0009] The above technical solution of the present invention has the following advantages over the existing technology: a polymer impact casing is fixedly connected to the inner bottom edge of the wastewater filter tank, a lap ring is fixedly connected to the inner surface of the wastewater filter tank, a clamping arm is detachably installed on the inner surface of the lap ring, and a rotating rod is movably sleeved on one end of the clamping arm.

[0010] The above-mentioned technical solution of the present invention has the following advantages compared with the existing technology: the outer surface of the pushing blade is fixedly connected to the outer surface of the bottom of the rotating rod, and the impacting water source will fit with the surface of the pushing blade. Since the surface of the pushing blade is an inclined surface, the water source will slide on the surface of the pushing blade. Utilizing the inclined surface of the pushing blade, an opposite pushing force will be generated under the impact of the water source, so that the pushing blade rotates the rotating rod on one end of the clamping arm, and one end of the scraping guard is fixedly connected to the top outer surface of the rotating rod. The outer surface of the filter screen can be detachably installed on the inner surface of the wastewater filter tank, and the sewage is irrigated into the interior of the wastewater filter tank, and the filter screen is used to filter the sewage. At the same time, the polymerization impact casing is used to compress and aggregate the incoming sewage. The compressed water source will produce a relatively large impact force.

[0011] The above technical solution of the present invention has the following advantages over the existing technology: one end of the scraping guard is fixedly connected to the top outer surface of the rotating rod, and the surface of the scraping guard is slidably overlapped on the bottom surface of the filter screen, and when the rotating rod rotates, the scraping guard on the top of the rotating rod slides on the bottom surface of the filter screen to scrape off the adhered impurities, and at the same time, the arc surface on the surface of the scraping guard is used to guide the scraped impurities downward.

[0012] The above technical solution of the present invention has the following advantages over the existing technology: the outer side of the oxidant sprayer is fixedly connected to the oxidation tank, sewage is poured into the interior of the oxidation tank by using a water pipe, and the strong oxidant is injected into the interior of the oxidation tank in conjunction with the oxidant sprayer, and the position of the oxidation tank is set on the inner wall surface of the oxidation tank.

[0013] The above technical solution of the present invention has the following advantages over the existing technology: the outer surface of the differentiation and mixing block is fixedly connected to the outer surface of the oxidant sprayer, and the position of the polymer sleeve is set on the bottom surface of the differentiation and mixing block. When the sewage rises inside the oxidation tank, the polymer sleeve is used to shrink and divert the sewage to mix the strong oxidant and the sewage.

[0014] The above technical solution of the present invention has the following advantages over the prior art: an impurity receiving groove is provided on the inner surface of the bottom of the oxidation tank, the extraction pipe is fixedly installed on the outer bottom surface of the oxidation tank, and one end of the extraction pipe extends to the inner wall surface of the impurity receiving groove, and at the same time cooperates with the groove holes on the outer surface of the differentiation and mixing block to differentiate and crush the sewage and the strong oxidant, so that the sewage and the strong oxidant are fully mixed, so that the wastewater is fully oxidized. When the sewage is stopped from being injected, the sewage with adsorbed impurities will accumulate inside the oxidation tank, and cooperate with the extraction pipe to absorb water source inside the impurity receiving groove, and the external water source will be diverted into the interior of the impurity receiving groove and discharged.

[0015] The above technical solution of the present invention has the following advantages over the prior art: an impurity liquid drain pipe is fixedly connected to the front bottom edge of the wastewater filter tank, and a water guide pipe is fixedly installed on the top surface of the wastewater filter tank, one end of the water guide pipe extends to the inner bottom edge of the oxidation tank. However, when there is no sewage irrigation inside the wastewater filter tank, the impurities will settle on their own, and will be accumulated at the bottom in conjunction with the polymer impact casing, and the impurity liquid drain pipe will be used to absorb the sewage remaining inside the wastewater filter tank and discharge the impurities.

[0016] The acid-base wastewater oxidation and precipitation combined treatment equipment described in the present invention, when the sewage is poured into the wastewater filter tank, it cooperates with the filter screen to filter the sewage, and at the same time cooperates with the polymerization impact casing to compress and polymerize the incoming sewage. The compressed water source will generate a relatively large impact force, and the impacted water source will fit with the surface of the pushing blade. Since the surface of the pushing blade is an inclined surface, the water source will slide on the surface of the pushing blade. The inclined surface of the pushing blade will generate an opposite pushing force under the impact of the water source, so that the pushing blade rotates the rotating rod on one end of the clamping arm. When the rotating rod rotates, the scraping guard plate on the top of the rotating rod slides on the bottom surface of the filter screen to scrape off the adhered impurities. At the same time, the arc surface on the scraping guard plate is used to guide the scraped impurities downward. However, when there is no sewage irrigation inside the wastewater filter tank, the impurities will settle on their own, and cooperate with the polymerization impact casing to accumulate them at the bottom. Cooperate with the impurity liquid drainage pipe to absorb the sewage remaining in the wastewater filter tank and discharge the impurities.

[0017] The acid-base wastewater oxidation and precipitation combined treatment equipment described in the utility model utilizes a water pipe to irrigate the sewage into the interior of the oxidation tank, cooperates with an oxidant sprayer to inject a strong oxidant into the interior of the oxidation tank, and when the sewage rises inside the oxidation tank, cooperates with a polymer sleeve to shrink and guide the sewage to mix the strong oxidant and the sewage, and at the same time cooperates with the grooves on the outer surface of the differentiation mixing block to differentiate and crush the sewage and the strong oxidant, so that the sewage and the strong oxidant are fully mixed, so that the wastewater is fully oxidized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the sectional three-dimensional structure of the wastewater filter tank in the present utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the scraper guard in the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of the oxidation tank in the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the oxidation tank in the utility model when viewed from the top in cross section.

[0024] Explanation of the reference numerals in the accompanying drawings in the specification: 11. Wastewater filter tank; a1. Polymer impact casing; a2. Overlap ring; a3. Clamping arm; a4. Rotating rod; a5. Push blade; a6. Scraping guard plate; a7. Filter screen; 12. Impurity liquid drain pipe; 13. Water guide pipe; 14. Oxidation tank; 141. Oxidant sprayer; 142. Differentiation mixing block; 143. Polymer sleeve; 144. Impurity collection tank; 145. Extraction pipe. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0026] Reference Figures 1 to 5As shown, the acid-base wastewater oxidation and precipitation combined treatment equipment of the present invention includes a wastewater filter tank 11, a sewage filter scraping unit is fixedly installed on the inner surface of the wastewater filter tank 11, and the sewage filter scraping unit includes a scraping guard plate a6, a filter screen a7 and a push blade a5. A sewage strong oxidation absorption unit is provided on the right surface of the wastewater filter tank 11, and the sewage strong oxidation absorption unit includes a polymerization sleeve 143, a differentiation mixing block 142, an oxidant sprayer 141 and an extraction pipe 145. A polymerization impact casing a1 is fixedly connected to the inner bottom edge of the wastewater filter tank 11, a lap ring a2 is fixedly connected to the inner surface of the wastewater filter tank 11, and a clamping arm a3 is detachably installed on the inner surface of the lap ring a2. A rotating rod a4 is movably connected to one end of the clamping arm a3, and the outer surface of the pushing blade a5 is fixedly connected to the bottom outer surface of the rotating rod a4. One end of the scraping guard a6 is fixedly connected to the top outer surface of the rotating rod a4. The outer surface of the filter screen a7 is detachably mounted on the inner surface of the wastewater filter tank 11. One end of the scraping guard a6 is fixedly connected to the top outer surface of the rotating rod a4, and the surface of the scraping guard a6 is slidably overlapped on the bottom surface of the filter screen a7. An impurity liquid drain pipe 12 is fixedly connected to the bottom edge of the front side of the wastewater filter tank 11, and a water guide pipe 13 is fixedly installed on the top surface of the wastewater filter tank 11. One end of the water guide pipe 13 extends to the inner bottom edge of the oxidation tank 14.

[0027] During operation, sewage is irrigated into the interior of the wastewater filter tank 11, and the filter screen a7 is used to filter the sewage. At the same time, the polymer impact casing a1 is used to compress and aggregate the incoming sewage. The compressed water source will produce a relatively large impact force, and the impacted water source will fit with the surface of the pushing blade a5. Since the surface of the pushing blade a5 is an inclined surface, the water source will slide on the surface of the pushing blade a5. By utilizing the inclined surface of the pushing blade a5, an opposite pushing force will be generated under the impact of the water source, so that the pushing blade a5 will hit the rotating rod a on one end of the clamping arm a3. 4 rotates, and when the rotating rod a4 rotates, the scraping guard a6 on the top of the rotating rod a4 slides on the bottom surface of the filter screen a7 to scrape off the adhered impurities. At the same time, the arc surface on the surface of the scraping guard a6 is used to guide the scraped impurities downward. However, when there is no sewage irrigation in the wastewater filter tank 11, the impurities will settle on their own and be accumulated at the bottom in cooperation with the polymer impact casing a1. The impurity liquid drainage pipe 12 is used to absorb the sewage remaining in the wastewater filter tank 11 and discharge the impurities.

[0028] Further, such as Figures 1 to 5As shown, the outer side of the oxidant sprayer 141 is fixedly connected to the oxidation tank 14, and the position of the oxidation tank 14 is set on the inner wall surface of the oxidation tank 14, the outer surface of the differentiation and mixing block 142 is fixedly connected to the outer surface of the oxidant sprayer 141, the position of the polymerization sleeve 143 is set on the bottom surface of the differentiation and mixing block 142, and an impurity receiving groove 144 is provided on the bottom inner surface of the oxidation tank 14, and the position of the extraction pipe 145 is fixedly installed on the outer bottom surface of the oxidation tank 14, and one end of the extraction pipe 145 extends to the inner wall surface of the impurity receiving groove 144.

[0029] During operation, the sewage is irrigated into the interior of the oxidation tank 14 using the water pipe 13, and the strong oxidant is injected into the interior of the oxidation tank 14 in conjunction with the oxidant sprayer 141. When the sewage rises in the oxidation tank 14, the sewage is contracted and diverted by the polymer sleeve 143 to mix the strong oxidant and the sewage. At the same time, the sewage and the strong oxidant are differentiated and crushed by the grooves on the outer surface of the differentiation and mixing block 142, so that the sewage and the strong oxidant are fully mixed and the wastewater is fully oxidized. When the sewage is stopped from being injected, the sewage with adsorbed impurities will accumulate in the interior of the oxidation tank 14, and the extraction pipe 145 will be used to absorb water source in the impurity receiving tank 144. The external water source will be diverted into the interior of the impurity receiving tank 144 and discharged.

[0030] Working principle: Sewage is irrigated into the interior of the wastewater filter tank 11, and the filter screen a7 is used to filter the sewage. At the same time, the polymer impact casing a1 is used to compress and aggregate the incoming sewage. The compressed water source will produce a relatively large impact force. The impacted water source will fit with the surface of the pushing blade a5. Since the surface of the pushing blade a5 is an inclined surface, the water source will slide on the surface of the pushing blade a5. By utilizing the inclined surface of the pushing blade a5, an opposite pushing force will be generated under the impact of the water source, so that the pushing blade a5 will hit the rotating rod on one end of the clamping arm a3. a4 rotates, and when the rotating rod a4 rotates, the scraping guard a6 on the top of the rotating rod a4 slides on the bottom surface of the filter screen a7 to scrape off the adhered impurities. At the same time, the arc surface on the surface of the scraping guard a6 is used to guide the scraped impurities downward. However, when there is no sewage irrigation inside the wastewater filter tank 11, the impurities will settle on their own and accumulate at the bottom in cooperation with the polymer impact casing a1. The impurity liquid drain pipe 12 is used to absorb the residual sewage inside the wastewater filter tank 11 and discharge the impurities.

[0031] The sewage is irrigated into the interior of the oxidation tank 14 by using the water pipe 13, and the strong oxidant is injected into the interior of the oxidation tank 14 in conjunction with the oxidant sprayer 141. When the sewage rises in the interior of the oxidation tank 14, the sewage is contracted and diverted by the polymerization sleeve 143 to mix the strong oxidant and the sewage. At the same time, the sewage and the strong oxidant are differentiated and crushed by the grooves on the outer surface of the differentiation and mixing block 142, so that the sewage and the strong oxidant are fully mixed and the wastewater is fully oxidized. When the sewage injection is stopped, the sewage with adsorbed impurities will accumulate in the interior of the oxidation tank 14, and the extraction pipe 145 will be used to absorb water source in the interior of the impurity receiving tank 144. The external water source will be diverted into the interior of the impurity receiving tank 144 and discharged.

[0032] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. Acid and alkaline wastewater oxidation and precipitation combined treatment equipment, including a wastewater filter tank (11), characterized in that: A sewage filtration and scraping unit is fixedly mounted on the inner surface of the wastewater filter tank (11), and the sewage filtration and scraping unit includes a scraping guard plate (a6), a filter screen (a7), and a push blade (a5). A sewage strong oxidation absorption unit is arranged on the right side surface of the wastewater filter tank (11), and the sewage strong oxidation absorption unit includes a polymer sleeve (143), a differentiation mixing block (142), an oxidant sprayer (141), and an extraction pipe (145).

2. The acid-base wastewater oxidation and precipitation combined treatment equipment according to claim 1 is characterized in that: A polymer impact casing (a1) is fixedly connected to the inner bottom edge of the wastewater filter tank (11), a lap ring (a2) is fixedly connected to the inner surface of the wastewater filter tank (11), a clamping arm (a3) ​​is detachably mounted on the inner surface of the lap ring (a2), and a rotating rod (a4) is movably sleeved on one end of the clamping arm (a3).

3. The acid-base wastewater oxidation and precipitation combined treatment equipment according to claim 1 is characterized in that: The outer surface of the pushing blade (a5) is fixedly connected to the outer surface of the bottom of the rotating rod (a4), one end of the scraping guard (a6) is fixedly connected to the outer surface of the top of the rotating rod (a4), and the outer surface of the filter screen (a7) is detachably mounted on the inner surface of the wastewater filter tank (11).

4. The acid-base wastewater oxidation and precipitation combined treatment equipment according to claim 1 is characterized in that: One end of the scraping guard (a6) is fixedly connected to the top outer surface of the rotating rod (a4), and the surface of the scraping guard (a6) is slidably overlapped on the bottom surface of the filter screen (a7).

5. The acid-base wastewater oxidation and precipitation combined treatment equipment according to claim 1 is characterized in that: The outer side of the oxidant sprayer (141) is fixedly connected to an oxidation tank (14), and the oxidation tank (14) is arranged on the inner wall surface of the oxidation tank (14).

6. The acid-base wastewater oxidation and precipitation combined treatment equipment according to claim 1, characterized in that: The outer surface of the differentiation mixing block (142) is fixedly connected to the outer surface of the oxidant sprayer (141), and the position of the polymer sleeve (143) is set on the bottom surface of the differentiation mixing block (142).

7. The acid-base wastewater oxidation and precipitation combined treatment equipment according to claim 5, characterized in that: An impurity receiving groove (144) is provided on the inner surface of the bottom of the oxidation tank (14), and the extraction pipe (145) is fixedly installed on the outer bottom surface of the oxidation tank (14), and one end of the extraction pipe (145) extends to the inner wall surface of the impurity receiving groove (144).

8. The acid-base wastewater oxidation and precipitation combined treatment equipment according to claim 1, characterized in that: An impurity liquid drainage pipe (12) is fixedly connected to the bottom edge of the front side of the wastewater filter tank (11), and a water guide pipe (13) is fixedly installed on the top surface of the wastewater filter tank (11), with one end of the water guide pipe (13) extending to the inner bottom edge of the oxidation tank (14).

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