Wastewater zero emission flue gas treatment device

Abstract

The utility model belongs to the technical field of wastewater and waste gas treatment, and particularly relates to a wastewater zero-emission flue gas treatment device which comprises a primary waste gas treatment assembly, a secondary waste gas treatment assembly is mounted on one side of the primary waste gas treatment assembly, and a connecting assembly is mounted on the other side of the primary waste gas treatment assembly. The first-stage waste gas treatment assembly comprises an adsorption treatment box shell, an activated carbon containing basket is slidably connected to the interior of the adsorption treatment box shell, a first baffle is fixedly connected to the interior of the activated carbon containing basket, and a second baffle is arranged on the side of the first baffle; the activated carbon is used for adsorbing harmful gas in waste gas, the baffle with a guiding function is arranged, so that the retention time of the gas in the activated carbon is prolonged, the adsorption efficiency of the activated carbon is further improved, and the solution is arranged, so that residual hydrogen sulfide and ammonia gas in the waste gas are conveniently removed through chemical reaction.

Description

Technical Field

[0001] The utility model relates to the technical field of waste water and waste gas treatment, in particular to a waste water zero-emission flue gas treatment device. Background Art

[0002] Sewage treatment plants are important environmental protection facilities for cities and industrial enterprises. Some harmful gases may appear in the process of sewage treatment. Some of these gases are carried in the production process or raw water, and some are produced by the decomposition of organic matter in the sewage under anaerobic conditions.

[0003] In Chinese Patent No. 201810938989.9, the present invention discloses an exhaust gas treatment device, wherein the exhaust gas treatment device comprises an exhaust and intake mechanism, a filtering mechanism and an exhaust gas collecting mechanism connected in sequence; wherein the exhaust and intake mechanism comprises at least one valve pipe (1) connected to the filtering mechanism and a piston (4) arranged on the valve pipe (1), and the piston (4) is provided with a power supply unit capable of driving the piston (4) to reciprocate; the filtering mechanism comprises a housing (5) connected to the valve pipe (1) and a filtering unit arranged inside the housing (5); and the exhaust gas collecting mechanism comprises a trough (6) connected to the housing (5). The purpose of effectively treating the exhaust gas and achieving a better treatment effect is achieved.

[0004] The existing wastewater zero-emission flue gas treatment device has the problem that when using activated carbon to adsorb harmful gases and odors in the exhaust gas, if the activated carbon is set too little, the gas will quickly pass through the activated carbon adsorption layer, and some harmful gases or odors may be discharged before they have time to be adsorbed, and the adsorption effect is limited. If more activated carbon is set, the cost and floor space are difficult to control.

[0005] Therefore, in order to solve the above problems, a wastewater zero-emission flue gas treatment device is proposed. Summary of the invention

[0006] In order to make up for the shortcomings of the existing technology, the problem that when the existing wastewater zero-emission flue gas treatment device uses activated carbon to adsorb harmful gases and odors in the exhaust gas is solved, if the activated carbon is set too little, the gas will quickly pass through the activated carbon adsorption layer, and some harmful gases or odors may be discharged before they have time to be adsorbed, and the adsorption effect is limited; if the activated carbon is set too much, the cost and floor space will be difficult to control.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a wastewater zero-emission flue gas treatment device, comprising a primary exhaust gas treatment component, a secondary exhaust gas treatment component is installed on one side of the primary exhaust gas treatment component, and a connecting component is installed on the other side of the primary exhaust gas treatment component, the primary exhaust gas treatment component comprises an adsorption treatment box shell, an activated carbon holding basket is slidably connected to the interior of the adsorption treatment box shell, and a first baffle is fixedly connected to the interior of the activated carbon holding basket, and a second baffle is arranged on the side of the first baffle, the outer wall of the adsorption treatment box shell is tightly fitted with a first sealing rubber ring, and the outer wall of the first sealing rubber ring is fixedly connected to a sealing door plate, the side of the sealing door plate is rotatably connected to a rotating shaft, and the end of the rotating shaft is fixedly connected to a first L-shaped block, and the bottom of the first L-shaped block is snap-connected to the second L-shaped block.

[0008] Preferably, the size of the first baffle is consistent with the size of the second baffle, and the first baffle and the second baffle are staggered, and the length of the first baffle is set to three quarters of the width of the activated carbon holding basket.

[0009] Preferably, the first L-shaped card block forms a rotating structure with the sealing door plate through a rotating shaft, and the sealing door plate forms a sealing structure with the adsorption treatment box shell through a first sealing rubber ring, the first L-shaped card block and the second L-shaped card block are engaged with each other, and the second L-shaped card block and the adsorption treatment box shell are integrated.

[0010] Preferably, the secondary exhaust gas treatment component includes a reaction solution holding box, one side of the reaction solution holding box is connected to a first connecting pipe, the top end of the first connecting pipe is connected to a second connecting pipe, and the side of the second connecting pipe is connected to a first air transmission port, the outer wall of the reaction solution holding box is integrally connected to a liquid level observation window, and the inside of the liquid level observation window is fixedly connected to a liquid level warning line, the top end of the reaction solution holding box is connected to an exhaust pipe, and the bottom end of the reaction solution holding box is connected to a waste liquid discharge pipe.

[0011] Preferably, the first air transmission port and the activated carbon holding basket form a connecting structure, and the first air transmission port and the reaction solution holding box form a connecting structure through the second connecting pipe and the first connecting pipe, and the top height of the first connecting pipe is consistent with the height of the liquid level warning line.

[0012] Preferably, the connecting assembly includes a second air transfer port, the side of the second air transfer port is connected to an air inlet pipe port, and the other side of the air inlet pipe port is fixedly connected to a second sealing rubber ring, the end of the air inlet pipe port is integrally connected to an insertion pipe port, and the outside of the air inlet pipe port is fixedly connected to a mounting flange.

[0013] Preferably, the air inlet pipe opening forms a communication structure with the inner cavity of the activated carbon holding basket through the second air transmission port.

[0014] The utility model is beneficial in that:

[0015] 1. The utility model is provided with a primary exhaust gas treatment component, which utilizes activated carbon to facilitate the adsorption and fixation of most harmful gases in the exhaust gas generated in the wastewater treatment process, and the sealed door panel can be opened, and the activated carbon holding basket can be taken out, so that the activated carbon contained in the activated carbon holding basket can be replaced, so as to ensure its adsorption effect, and the activated carbon holding basket is provided with a first baffle plate and a second baffle plate placed alternately, which can guide the exhaust gas when it enters the activated carbon holding basket, so that the exhaust gas flows in the activated carbon holding basket along a wavy route, so as to increase the residence time of the exhaust gas in the activated carbon, so as to improve the adsorption efficiency.

[0016] 2. The utility model is provided with a secondary waste gas treatment component. After the waste gas is treated by activated carbon adsorption, it will enter the sodium hydroxide alkaline solution. The chemical reaction between the solution and hydrogen sulfide and ammonia gas is used to further treat the gas, so as to further treat the hydrogen sulfide and ammonia in the waste gas, so as to make the waste gas treatment more thorough. A liquid level observation window is designed to facilitate real-time observation of the liquid level when adding the solution. It cooperates with the liquid level warning line to make the liquid level lower than the first connecting pipe when adding the solution, and then use the communicating vessel principle to prevent the solution from flowing into the second connecting pipe along the first connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in an overall opened state.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model in an overall closed state.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of a partially opened state of a first-stage exhaust gas treatment component of the utility model.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the secondary exhaust gas treatment component part of the utility model.

[0022] Figure 5It is a three-dimensional structural schematic diagram of the connection component part of the utility model.

[0023] In the figure: 1. primary exhaust gas treatment component; 2. secondary exhaust gas treatment component; 3. connection component; 101. adsorption treatment box shell; 102. activated carbon holding basket; 103. first baffle; 104. second baffle; 105. first sealing rubber ring; 106. sealing door plate; 107. rotating shaft; 108. first L-shaped card block; 109. second L-shaped card block; 201. reaction solution holding box; 202. first connecting pipe; 203. second connecting pipe; 204. first air transmission port; 205. liquid level observation window; 206. liquid level warning line; 207. exhaust pipe; 208. waste liquid discharge pipe; 301. second air transmission port; 302. air inlet pipe port; 303. second sealing rubber ring; 304. mounting flange; 305. insertion pipe port. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0025] like Figure 1 As shown, a wastewater zero-emission flue gas treatment device includes a primary exhaust gas treatment component 1, a secondary exhaust gas treatment component 2 is installed on one side of the primary exhaust gas treatment component 1, and a connecting component 3 is installed on the other side of the primary exhaust gas treatment component 1.

[0026] like Figure 3As shown, a wastewater zero-emission flue gas treatment device, the first-level waste gas treatment component 1 is used to use activated carbon to adsorb harmful gases in the gas, the size of the first baffle 103 is consistent with the size of the second baffle 104, and the first baffle 103 and the second baffle 104 are staggered, and the length of the first baffle 103 is set to three quarters of the width of the activated carbon holding basket 102, the first L-shaped block 108 and the sealing door plate 106 form a rotating structure through a rotating shaft 107, and the sealing door plate 106 forms a sealing structure with the adsorption treatment box shell 101 through a first sealing rubber ring 105, the first L-shaped block 108 and the second L-shaped block 109 are mutually engaged, and the second L-shaped block 109 is connected to the outer shell of the adsorption treatment box. The shell 101 is an integrated setting, and the activated carbon can be used to adsorb and fix most of the harmful gases in the exhaust gas generated in the wastewater treatment process, and the sealing door panel 106 can be opened, and the activated carbon holding basket 102 can be taken out, so that the activated carbon contained in the activated carbon holding basket 102 can be replaced to ensure its adsorption effect. The activated carbon holding basket 102 is provided with a first baffle 103 and a second baffle 104 that are staggered. When the exhaust gas enters the activated carbon holding basket 102, it can be guided so that the exhaust gas flows in the activated carbon holding basket 102 along a wavy route, thereby increasing the residence time of the exhaust gas in the activated carbon, thereby improving the adsorption efficiency.

[0027] like Figure 4 As shown, a wastewater zero-emission flue gas treatment device, the secondary waste gas treatment component 2 is used to utilize the chemical reaction between the alkaline solution and hydrogen sulfide and ammonia to treat the residual hydrogen sulfide and ammonia in the waste gas, the first gas transmission port 204 and the activated carbon holding basket 102 form a connecting structure, and the first gas transmission port 204 forms a connecting structure with the reaction solution holding box 201 through the second connecting pipe 203 and the first connecting pipe 202, and the top height of the first connecting pipe 202 is consistent with the height of the liquid level warning line 206. After being treated by activated carbon adsorption, the waste gas will enter the sodium hydroxide alkaline solution, and the chemical reaction between the solution and the hydrogen sulfide and ammonia gases will facilitate further treatment of the gas, thereby facilitating the removal of hydrogen sulfide from the waste gas. Ammonia is treated again to make the waste gas treatment more thorough. A liquid level observation window 205 is designed to facilitate real-time observation of the liquid level when the solution is added. It cooperates with the liquid level warning line 206 to make the liquid level lower than the first connecting pipe 202 when the solution is added, and then utilize the connecting vessel principle to prevent the solution from flowing into the second connecting pipe 203 along the first connecting pipe 202.

[0028] like Figure 5As shown, a wastewater zero-emission flue gas treatment device, the connecting component 3 includes a second air transfer port 301, the side of the second air transfer port 301 is connected to an air inlet pipe port 302, and the other side of the air inlet pipe port 302 is fixedly connected to a second sealing rubber ring 303, the end of the air inlet pipe port 302 is integrally connected to an insertion pipe port 305, and the outside of the air inlet pipe port 302 is fixedly connected to a mounting flange 304, and the air inlet pipe port 302 forms a connecting structure with the inner cavity of the activated carbon holding basket 102 through the second air transfer port 301.

[0029] Working principle: First, when installing the device, align the insertion pipe mouth 305 with the exhaust pipe mouth of the wastewater treatment facility, so that the second sealing rubber ring 303 fits tightly with the exhaust pipe mouth, and use screws to connect and fix the treatment device to the exhaust pipe of the wastewater treatment facility through the mounting flange 304. The exhaust gas generated during the wastewater treatment process will enter the air inlet pipe mouth 302 through its exhaust pipe mouth, and pass through the second air transfer port 301 and the opening on the side of the adsorption treatment box shell 101 to the activated carbon holding basket 102. Since the two sides of the activated carbon holding basket 102 are ventilated mesh plates, the exhaust gas can enter the interior of the activated carbon holding basket 102 and be blocked and guided by the first baffle 103 and the second baffle 104. In the interior of the activated carbon holding basket 102, the exhaust gas flows from one side to the other side along a wavy route. During the circulation process, the activated carbon contained in the activated carbon holding basket 102 can adsorb gases such as methane, carbon monoxide, hydrogen sulfide, and ammonia in the exhaust gas.

[0030] The gas after the primary adsorption treatment will enter the second connecting pipe 203 through the first gas transmission port 204, and be discharged into the bottom end of the reaction solution holding box 201 through the first connecting pipe 202, enter the reaction solution holding box 201 from the bottom, and be discharged upward. During the upward movement of the gas, the hydrogen sulfide and ammonia remaining in the gas will react with the sodium hydroxide alkaline solution contained in the reaction solution holding box 201, thereby removing the residual hydrogen sulfide and ammonia in the gas. The treated gas is finally discharged upward through the exhaust pipe 207.

[0031] After using for a period of time, the activated carbon and the alkaline solution need to be updated. The first L-shaped card block 108 is rotated upward to disengage the first L-shaped card block 108 from the second L-shaped card block 109. When all four first L-shaped card blocks 108 are rotated and opened, the sealing door panel 106 can be removed, and then the activated carbon holding basket 102 is pulled outward to take out the activated carbon holding basket 102, and the activated carbon particles used for absorbing harmful gases are poured into the interior of the activated carbon holding basket 102, distributed between each first baffle 103 and the second baffle 104, and poured into the top of the activated carbon particles and the activated carbon holding basket 102. 2, then slide the activated carbon holding basket 102 back into the interior of the adsorption treatment box shell 101, and close the fixed sealing door panel 106. When replacing the solution in the reaction solution holding box 201, just open the valve on the top of the waste liquid discharge pipe 208 to discharge the waste liquid in the reaction solution holding box 201, and then add new sodium hydroxide alkaline solution into the interior of the reaction solution holding box 201 from the exhaust pipe 207. While adding, observe the liquid level through the liquid level observation window 205. When the liquid level is about to reach the liquid level warning line 206, stop.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A wastewater zero emission flue gas treatment device, characterized in that: It comprises a primary exhaust gas treatment component (1), a secondary exhaust gas treatment component (2) is installed on one side of the primary exhaust gas treatment component (1), and a connecting component (3) is installed on the other side of the primary exhaust gas treatment component (1); The primary exhaust gas treatment component (1) comprises an adsorption treatment box shell (101), an activated carbon holding basket (102) is slidably connected to the interior of the adsorption treatment box shell (101), a first baffle (103) is fixedly connected to the interior of the activated carbon holding basket (102), and a second baffle (104) is arranged on the side of the first baffle (103), a first sealing rubber ring (105) is tightly fitted to the outer wall of the adsorption treatment box shell (101), and a sealing door plate (106) is fixedly connected to the outer wall of the first sealing rubber ring (105), a rotating shaft (107) is rotatably connected to the side of the sealing door plate (106), and a first L-shaped clamping block (108) is fixedly connected to the end of the rotating shaft (107), and a second L-shaped clamping block (109) is clamped and connected to the bottom of the first L-shaped clamping block (108).

2. A wastewater zero-emission flue gas treatment device according to claim 1, characterized in that: The size of the first baffle (103) is consistent with the size of the second baffle (104), and the first baffle (103) and the second baffle (104) are arranged in a staggered manner, and the length of the first baffle (103) is set to three quarters of the width of the activated carbon holding basket (102).

3. The wastewater zero-emission flue gas treatment device according to claim 1 is characterized by: The first L-shaped card block (108) forms a rotating structure with the sealing door plate (106) via the rotating shaft (107), and the sealing door plate (106) forms a sealing structure with the adsorption treatment box shell (101) via the first sealing rubber ring (105), the first L-shaped card block (108) and the second L-shaped card block (109) are mutually engaged, and the second L-shaped card block (109) and the adsorption treatment box shell (101) are integrally arranged.

4. The wastewater zero-emission flue gas treatment device according to claim 1 is characterized by: The secondary waste gas treatment component (2) comprises a reaction solution holding box (201), one side of the reaction solution holding box (201) is connected to a first connecting pipe (202), the top end of the first connecting pipe (202) is connected to a second connecting pipe (203), and the side of the second connecting pipe (203) is connected to a first gas transmission port (204), the outer wall of the reaction solution holding box (201) is integrally connected to a liquid level observation window (205), and the inside of the liquid level observation window (205) is fixedly connected to a liquid level warning line (206), the top end of the reaction solution holding box (201) is connected to an exhaust pipe (207), and the bottom end of the reaction solution holding box (201) is connected to a waste liquid discharge pipe (208).

5. A wastewater zero-emission flue gas treatment device according to claim 4, characterized in that: The first gas transmission port (204) and the activated carbon holding basket (102) form a communication structure, and the first gas transmission port (204) and the reaction solution holding box (201) form a communication structure through the second communication pipe (203) and the first communication pipe (202), and the top height of the first communication pipe (202) is consistent with the height of the liquid level warning line (206).

6. The wastewater zero-emission flue gas treatment device according to claim 1 is characterized by: The connection assembly (3) comprises a second air transmission port (301), the side of the second air transmission port (301) is connected to an air inlet port (302), and the other side of the air inlet port (302) is fixedly connected to a second sealing rubber ring (303), the end of the air inlet port (302) is integrally connected to an insertion port (305), and the outside of the air inlet port (302) is fixedly connected to a mounting flange (304).

7. A wastewater zero-emission flue gas treatment device according to claim 6, characterized in that: The air inlet pipe opening (302) forms a communication structure with the inner cavity of the activated carbon containing basket (102) via the second air transmission opening (301).

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