Wastewater hydrolytic acidification equipment

Abstract

The utility model discloses wastewater hydrolytic acidification equipment, relates to the field of hydrolytic acidification equipment, and aims to solve the problems that the existing hydrolytic acidification wastewater treatment equipment in the prior art is low in mass transfer efficiency and relatively low in removal capacity for soluble organic pollutants, so that the biochemical reaction rate of a system is greatly reduced. An inner reaction tank is fixedly arranged in the hydrolytic acidification equipment, a heating coil is fixedly connected to the outer side of the inner reaction tank, a water distribution plate is arranged at the lower end in the inner reaction tank, a turbulent cavity is formed in the upper end of the water distribution plate, and an arc-shaped turbulent plate is fixedly connected to the middle of the rear end face of the inner reaction tank in the turbulent cavity. A first sludge layer is arranged at the upper end of the turbulent cavity, a second sludge layer is arranged at the upper end of the first sludge layer, a sludge suspension layer is arranged at the upper end of the second sludge layer, a water collecting tank is arranged in the middle of one side of the hydrolytic acidification equipment, and a high-level water tank is arranged at the upper end of one side of the water collecting tank.

Description

Technical Field

[0001] The utility model relates to the field of hydrolysis acidification equipment, in particular to wastewater hydrolysis acidification equipment. Background Art

[0002] The hydrolysis and acidification process of wastewater has been widely studied and applied as a biological pretreatment technology at home and abroad. Some foreign scholars believe that whether it is UASB (Upflow Anaerobic Sludge Bed) or EGSB (Expanded Granular Sludge Bed) reactor, if high organic loading rate and removal rate, as well as good sedimentation characteristics and microbial activity are to be obtained, the acidification stage needs to be effectively exerted. Although the design of the acidification reactor is not standardized enough, it is often used in UASB and EGSB systems abroad. Regarding the removal capacity of the acidification reactor for soluble COD, there have been small-scale research reports in recent years on the use of two-stage UASB to treat beer wastewater and obtain a removal rate of (20±4)% in the acidification stage. The efficiency of the hydrolysis acidification process is roughly divided into five points: first, it can improve the biodegradability of the wastewater; second, it can remove a small amount of organic pollutants at the same time; third, it can reduce the subsequent aeration volume; fourth, it reduces the sludge yield; and fifth, it significantly saves energy. If the hydrolysis acidification process can maintain many advantages while further improving its ability to remove organic pollutants, thereby greatly reducing the investment and operating costs of urban sewage and industrial wastewater treatment projects, its practical significance will be very significant.

[0003] Although hydrolysis acidification wastewater treatment technology has been studied and applied for many years, the existing hydrolysis acidification wastewater treatment equipment has low mass transfer efficiency and low removal capacity for soluble organic pollutants, which greatly reduces the biochemical reaction rate of the system; therefore, the market urgently needs to develop a wastewater hydrolysis acidification equipment to help people solve existing problems. Utility Model Content

[0004] The purpose of the utility model is to provide a wastewater hydrolysis acidification device to solve the problem that the existing hydrolysis acidification wastewater treatment equipment proposed in the above background technology has low mass transfer efficiency and low removal capacity for soluble organic pollutants, thereby greatly reducing the biochemical reaction rate of the system.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wastewater hydrolysis and acidification equipment, comprising a hydrolysis and acidification equipment, a water inlet pipe is connected to the lower end of one side of the hydrolysis and acidification equipment, an inner reaction tank body is fixedly arranged inside the hydrolysis and acidification equipment, a heating coil is fixedly connected to the outer side of the inner reaction tank body, a water distribution plate is arranged at the lower end of the inner reaction tank body, a turbulent cavity is arranged at the upper end of the water distribution plate, an arc-shaped turbulent plate is fixedly connected to the middle of the rear end surface of the inner reaction tank body inside the turbulent cavity, a first sludge layer is arranged at the upper end of the turbulent cavity, a second sludge layer is arranged at the upper end of the first sludge layer, a sludge suspension layer is arranged at the upper end of the second sludge layer, a drain pipe is connected to the upper end of one side of the inner reaction tank body, the other end of the drain pipe extends out of the hydrolysis and acidification equipment, a diversion pipe is arranged in the middle of the drain pipe, and a water diversion pipe is connected to the middle of the lower end of the diversion pipe, a water collecting tank is arranged in the middle of one side of the hydrolysis and acidification equipment, and a high-level water tank is arranged at the upper end of one side of the water collecting tank.

[0006] Preferably, the lower end of the water inlet pipe extends to the interior of the hydrolysis acidification equipment and is connected to the lower end of the water distribution plate inside the inner reaction tank body, and a flow meter is provided on the water inlet pipe.

[0007] Preferably, one side of the upper end of the heating coil is connected to a temperature controller.

[0008] Preferably, a permeable isolation net is provided between the turbulent chamber and the first sludge layer, between the first sludge layer and the second sludge layer, and between the second sludge layer and the sludge suspension layer.

[0009] Preferably, a water baffle is fixedly provided in the middle of the diversion pipe, a water blocking plate is fixedly connected to one side of the front end of the water baffle, and the upper end of the water diversion pipe is connected to the lower end of one side of the front end of the water baffle.

[0010] Preferably, the lower end of the water distribution pipe is connected to the water collecting tank, and the water collecting tank is connected to the high-level water tank through a reflux pipe, and a reflux pump is provided on the reflux pipe.

[0011] Preferably, the lower end of the high-level water tank is connected to one side of the middle part of the turbulent chamber of the inner reaction tank body through a delivery pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, a turbulent cavity is provided at the upper end of a water distribution plate through the setting of a turbulent cavity, an arc-shaped turbulent plate is fixedly connected to the middle of the rear end surface of the inner reaction tank body inside the turbulent cavity, and the lower end of the high-level water tank is connected to one side of the middle part of the turbulent cavity of the inner reaction tank body through a conveying pipe. The flowing water in the high-level water tank is conveyed to the inside of the turbulent cavity through the conveying pipe and turbulently induced through the arc-shaped turbulent plate, so that a relatively strong turbulent and vortex motion is caused inside the turbulent cavity, and the vortex diffusion is used to accelerate the mass transfer, so as to realize the efficient hydrolysis acidification reaction process, thereby greatly improving the removal rate of organic pollutants of the equipment.

[0014] 2. In the utility model, a diversion pipe is provided in the middle of the drainage pipe through the setting of a diversion pipe, a water baffle is fixedly provided in the middle of the inside of the diversion pipe, a water blocking plate is fixedly connected to one side of the front end of the water baffle, the upper end of the diversion pipe is connected to the lower end of one side of the front end of the water baffle, and part of the outflowing water flow is diverted through the diversion pipe.

[0015] 3. In the utility model, a water distribution plate is provided at the lower end of the inner reaction tank body through the setting of a water distribution plate. Wastewater is transported to the lower end of the water distribution plate inside the inner reaction tank body through a water inlet pipe. The wastewater is evenly dispersed by the water distribution plate and then enters the turbulent chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a wastewater hydrolysis and acidification device of the utility model;

[0017] Figure 2 This is the front view of the heating coil of the utility model;

[0018] Figure 3 It is the main sectional view of the utility model;

[0019] Figure 4 It is a top sectional view of the turbulent cavity of the utility model;

[0020] Figure 5 It is a top cross-sectional view of the shunt pipe of the utility model;

[0021] Figure 6 It is an enlarged view of the detail A of the present utility model.

[0022] In the figure: 1. hydrolysis acidification equipment; 101. water inlet pipe; 102. flow meter; 103. temperature controller; 2. internal reaction tank; 201. heating coil; 202. water distribution plate; 203. turbulent chamber; 204. arc turbulent plate; 205. first sludge layer; 206. second sludge layer; 207. sludge suspension layer; 208. permeable isolation net; 3. drainage pipe; 301. diversion pipe; 302. water baffle; 303. water blocking plate; 304. water distribution pipe; 4. water collecting tank; 401. return pipe; 402. return pump; 5. high-level water tank; 501. delivery pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-6 The utility model provides an embodiment: a wastewater hydrolysis and acidification device, including a hydrolysis and acidification device 1, a water inlet pipe 101 is connected to the lower end of one side of the hydrolysis and acidification device 1, an inner reaction tank body 2 is fixedly arranged inside the hydrolysis and acidification device 1, a heating coil 201 is fixedly connected to the outer side of the inner reaction tank body 2, a water distribution plate 202 is arranged at the lower end of the inner reaction tank body 2, a turbulent cavity 203 is arranged at the upper end of the water distribution plate 202, and an arc-shaped turbulent plate 204 is fixedly connected to the middle of the rear end surface of the inner reaction tank body 2 inside the turbulent cavity 203, A first sludge layer 205 is arranged at the upper end of the turbulent chamber 203, a second sludge layer 206 is arranged at the upper end of the first sludge layer 205, a sludge suspension layer 207 is arranged at the upper end of the second sludge layer 206, a drain pipe 3 is connected to the upper end of one side of the inner reaction tank body 2, the other end of the drain pipe 3 extends out of the hydrolysis acidification equipment 1, a diversion pipe 301 is arranged in the middle of the drain pipe 3, and a water diversion pipe 304 is connected to the middle of the lower end of the diversion pipe 301, a water collecting tank 4 is arranged in the middle of one side of the hydrolysis acidification equipment 1, and a high-level water tank 5 is arranged at the upper end of one side of the water collecting tank 4.

[0025] Furthermore, the lower end of the water inlet pipe 101 extends to the inside of the hydrolysis acidification equipment 1 and communicates with the lower end of the water distribution plate 202 inside the inner reaction tank body 2. A flow meter 102 is provided on the water inlet pipe 101 to control the sewage inlet rate.

[0026] Furthermore, one side of the upper end of the heating coil 201 is connected to the temperature controller 103, and the temperature controller 103 controls the heating coil 201 to heat the inner reaction tank body 2, so that the inner reaction tank body 2 is kept at a constant temperature of 24°C.

[0027] Furthermore, permeable isolation nets 208 are provided between the turbulent chamber 203 and the first sludge layer 205 , between the first sludge layer 205 and the second sludge layer 206 , and between the second sludge layer 206 and the sludge suspension layer 207 .

[0028] Furthermore, a water baffle 302 is fixedly installed in the middle part of the diversion pipe 301, and a water blocking plate 303 is fixedly connected to one side of the front end of the water baffle 302. The upper end of the water diversion pipe 304 is connected to the lower end of one side of the front end of the water baffle 302, and part of the outflowing water is diverted through the diversion pipe 301.

[0029] Furthermore, the lower end of the water distribution pipe 304 is connected to the water collecting tank 4, and the water collecting tank 4 and the high-level water tank 5 are connected through the return pipe 401. A reflux pump 402 is provided on the reflux pipe 401. Part of the diverted water is poured into the water collecting tank 4 for storage through the water distribution pipe 304, and the returning water in the water collecting tank 4 is pumped into the high-level water tank 5 through the reflux pump 402 through the reflux pipe 401.

[0030] Furthermore, the lower end of the high-level water tank 5 is connected to one side of the middle part of the turbulent chamber 203 of the inner reaction tank body 2 through the delivery pipe 501. The flowing water in the high-level water tank 5 is delivered to the inside of the turbulent chamber 203 through the delivery pipe 501, and turbulently oscillates through the arc-shaped turbulent plate 204, so that the inside of the turbulent chamber 203 creates a relatively strong turbulent and vortex motion. By utilizing vortex diffusion to accelerate mass transfer, an efficient hydrolysis and acidification reaction process can be achieved, thereby greatly improving the removal rate of organic pollutants in the system.

[0031] Working principle: When in use, the wastewater is transported to the lower end of the water distribution plate 202 inside the inner reaction tank body 2 through the water inlet pipe 101, and the wastewater is evenly dispersed through the water distribution plate 202 and then enters the turbulent chamber 203. The outer side of the inner reaction tank body 2 is fixedly connected with a heating coil 201, and one side of the upper end of the heating coil 201 is connected to the temperature controller 103. The heating coil 201 is controlled by the temperature controller 103 to heat the inner reaction tank body 2, so that the inner reaction tank body 2 is kept at a constant temperature of 24°C, and is processed one by one through the first sludge layer 205, the second sludge layer 206 and the sludge suspension layer 207. The treated sewage is discharged through the drain pipe 3, and a water baffle 302 is fixedly provided in the middle of the diversion pipe 301, and a water blocking plate 303 is fixedly connected to one side of the front end of the water baffle 302. The upper end of the water diversion pipe 304 is connected to the lower end of one side of the front end of the water baffle 302, and the water is discharged through the diversion pipe 3 01 diverts part of the effluent water flow, and the lower end of the water diversion pipe 304 is connected with the water collecting tank 4. The water collecting tank 4 and the high-level water tank 5 are connected through the reflux pipe 401. The reflux pump 402 is arranged on the reflux pipe 401. The diverted part of the effluent water is poured into the water collecting tank 4 for storage through the water diversion pipe 304. The reflux pump 402 pumps the reflux water in the water collecting tank 4 into the high-level water tank 5 through the reflux pipe 401. The lower end of the high-level water tank 5 is connected with one side of the middle part of the turbulent chamber 203 of the inner reaction tank body 2 through the delivery pipe 501. The reflux water in the high-level water tank 5 is transported to the turbulent chamber 203 through the delivery pipe 501 and turbulently turbulently turbulently turbulently vortex plate 204, so that the turbulent chamber 203 has a stronger turbulent and vortex motion. The vortex diffusion is used to accelerate the mass transfer, so as to realize the efficient hydrolysis acidification reaction process, thereby greatly improving the removal rate of organic pollutants in the system.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A wastewater hydrolysis and acidification device, comprising a hydrolysis and acidification device (1), characterized in that: The lower end of one side of the hydrolysis and acidification device (1) is connected to a water inlet pipe (101); an inner reaction tank body (2) is fixedly arranged inside the hydrolysis and acidification device (1); a heating coil (201) is fixedly connected to the outer side of the inner reaction tank body (2); a water distribution plate (202) is arranged at the lower end of the inner reaction tank body (2); a turbulent cavity (203) is arranged at the upper end of the water distribution plate (202); an arc-shaped turbulent plate (204) is fixedly connected to the middle of the rear end surface of the inner reaction tank body (2) inside the turbulent cavity (203); and a first sludge layer (205) is arranged at the upper end of the turbulent cavity (203). A second sludge layer (206) is arranged at the upper end of the first sludge layer (205), a sludge suspension layer (207) is arranged at the upper end of the second sludge layer (206), a drainage pipe (3) is connected to the upper end of one side of the inner reaction tank body (2), the other end of the drainage pipe (3) extends out of the hydrolysis acidification device (1), a diversion pipe (301) is arranged in the middle of the drainage pipe (3), a water diversion pipe (304) is connected to the middle of the lower end of the diversion pipe (301), a water collecting tank (4) is arranged in the middle of one side of the hydrolysis acidification device (1), and a high-level water tank (5) is arranged at the upper end of one side of the water collecting tank (4).

2. A wastewater hydrolysis and acidification equipment according to claim 1, characterized in that: The lower end of the water inlet pipe (101) extends to the inside of the hydrolysis acidification equipment (1) and is connected to the lower end of the water distribution plate (202) inside the inner reaction tank body (2). A flow meter (102) is provided on the water inlet pipe (101).

3. A wastewater hydrolysis and acidification equipment according to claim 1, characterized in that: One side of the upper end of the heating coil (201) is connected to a temperature controller (103).

4. A wastewater hydrolysis and acidification equipment according to claim 1, characterized in that: A permeable isolation net (208) is provided between the turbulent chamber (203) and the first sludge layer (205), between the first sludge layer (205) and the second sludge layer (206), and between the second sludge layer (206) and the sludge suspension layer (207).

5. The wastewater hydrolysis and acidification equipment according to claim 1, characterized in that: A water baffle (302) is fixedly arranged in the middle of the diversion pipe (301), a water blocking plate (303) is fixedly connected to one side of the front end of the water baffle (302), and the upper end of the water diversion pipe (304) is connected to the lower end of one side of the front end of the water baffle (302).

6. A wastewater hydrolysis and acidification equipment according to claim 1, characterized in that: The lower end of the water distribution pipe (304) is connected to the water collecting tank (4), and the water collecting tank (4) is connected to the high-level water tank (5) via a return pipe (401), and a return pump (402) is provided on the return pipe (401).

7. The wastewater hydrolysis and acidification equipment according to claim 1, characterized in that: The lower end of the high-level water tank (5) is connected to one side of the middle portion of the turbulent chamber (203) of the inner reaction tank body (2) through a delivery pipe (501).

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