Industrial solid waste hydrochloric acid waste gas purification device
By designing an air inlet cylinder, perforated filter, and scraper to remove impurities, combined with the neutralization reaction in the neutralization tank and the adsorption of activated carbon blocks, the problem of insufficient impurity filtration in the spray chamber was solved, achieving efficient purification of hydrochloric acid waste gas and pure recovery of neutralized liquid.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGHAI LAIRUN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-09
AI Technical Summary
The existing hydrochloric acid waste gas purification device lacks impurity filtration in the spray chamber, resulting in a large amount of impurities and dust in the sprayed neutralized liquid, which affects the quality of the neutralized liquid recovered later.
A purification device including an air intake component, a neutralization tank, and an exhaust component was designed. The device removes dust and impurities from the exhaust gas through an air intake cylinder and a perforated cylinder filter, scrapes off impurities from the filter cloth using a scraper, then neutralizes hydrochloric acid by reacting with an alkaline liquid in the neutralization tank, and finally removes odors by adsorption using activated carbon blocks.
It effectively removes impurities from hydrochloric acid waste gas, ensures the purity of the neutralized liquid, improves the recovery quality of the neutralized liquid, and reduces odor emissions.
Smart Images

Figure CN224331765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydrochloric acid waste gas purification devices, and in particular to a hydrochloric acid waste gas purification device for industrial solid waste. Background Technology
[0002] Industrial solid waste is sorted during recycling to recover reusable materials. After being crushed, industrial solid waste can be reduced in volume through incineration, pyrolysis, and other methods. However, incinerating industrial solid waste produces hydrochloric acid gas, which, if directly emitted, deteriorates the environment.
[0003] The existing announcement number CN215692819U, entitled "A Device for Recovering Hydrochloric Acid Waste Gas," includes a base and a demister. A support column is mounted on top of the base, and auxiliary components are located inside the support column. The demister is installed at the top of the support column, and an operating chamber is located above the demister. A motor is mounted on the left outer wall of the operating chamber, and a rotating rod is located at the right end of the motor. Rotating blades are mounted on both sides of the rotating rod, and adsorption sleeves are fitted onto the outer sides of the rotating blades. A fan is mounted on the right outer wall of the operating chamber, and a spray chamber is located at the right end of the fan. A water tank is located above the right end of the base. A dust collection box is installed at the bottom of the spray chamber, and a water pump is mounted on the right outer wall of the spray chamber. This hydrochloric acid waste gas recovery device employs a multi-stage filtration and purification structure for more refined treatment of the waste gas. It can remove odors and impurities from the waste gas and has a disassembly structure, allowing for timely replacement and cleaning of parts.
[0004] However, the hydrochloric acid waste gas generated from the incineration of the aforementioned industrial solid waste is neutralized by spraying neutralizing liquid in the spray chamber. But if the hydrochloric acid waste gas is directly guided into the spray chamber, the hydrochloric acid waste gas will contain impurities and dust, resulting in a large amount of impurities and dust in the neutralizing liquid sprayed in the spray chamber. The lack of impurity filtration in the spray chamber is not conducive to the later recovery of the neutralizing liquid. Utility Model Content
[0005] This invention solves the problems in related technologies and proposes a device for purifying hydrochloric acid waste gas from industrial solid waste.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: an industrial solid waste hydrochloric acid waste gas purification device, including an air inlet, a neutralization tank, and an exhaust device. The air inlet includes an air inlet cylinder and a perforated cylinder. A screw ring is vertically connected and fixed at the bottom of the air inlet cylinder, and a perforated cylinder is assembled inside the air inlet cylinder. An external thread is opened at the bottom of the outer wall of the perforated cylinder, and the external thread is threadedly connected to the screw ring. A filter cloth is fixed on the inner wall of the perforated cylinder, and a scraper is vertically arranged inside the perforated cylinder. The top end of the scraper is rotatably connected to the top surface of the perforated cylinder, and a motor is vertically fixed on the top surface of the perforated cylinder. The output end of the motor is fixed on the top surface of the scraper. The top end of the air inlet cylinder is connected and fixed to the top surface of the neutralization tank, and an exhaust device is vertically connected and fixed on the other side of the neutralization tank. An air inlet pipe is vertically connected and fixed at the bottom end of the screw ring.
[0007] As a preferred embodiment, the top of the air intake cylinder is connected to a screw cap via a pipe, and the bottom surface of the screw cap is connected to a pipe with a vertically fixed air rod.
[0008] As a preferred option, an air pump is installed on the intake pipe.
[0009] As a preferred embodiment, the neutralization tank has an opening at the top, and an internal thread is provided on the upper side of the inner wall of the neutralization tank. The internal thread is assembled and connected with the screw cap thread, and an air rod is inserted into the neutralization tank.
[0010] As a preferred embodiment, a drain pipe is vertically connected and fixed on the bottom surface of the neutralization tank, and a valve is connected and fixed on the drain pipe.
[0011] As a preferred embodiment, an exhaust pipe is vertically connected and fixed to the outer wall of the neutralization tank via a pipe, and an exhaust pump is connected and installed on the pipe at the bottom of the exhaust pipe.
[0012] As a preferred option, the neutralization tank is filled with activated carbon blocks, and an exhaust plug is vertically inserted into the opening of the neutralization tank.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Hydrochloric acid waste gas generated from the incineration of industrial solid waste is guided into the inlet cylinder through the inlet pipe. A perforated cylinder is threadedly assembled inside the inlet cylinder. After the waste gas enters, the dust and impurities it carries are filtered out by the perforated cylinder and filter cloth. To ensure the filter cloth's filtration effect, a motor is started to drive the scraper to rotate. The scraper on the scraper removes impurities adhering to the filter cloth. By using a perforated cylinder in the inlet cylinder to filter the incoming hydrochloric acid waste gas, impurities in the hydrochloric acid waste gas are prevented from entering and remaining in the neutralization tank, facilitating the later recovery of the neutralized liquid. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2This is an exploded structural diagram of the present invention;
[0016] Figure 3 This is a schematic diagram of the air intake component in the disassembled state in an embodiment of this utility model;
[0017] Figure 4 This is a schematic diagram of the perforated tube in the disassembled state in an embodiment of this utility model;
[0018] Figure 5 This is a schematic diagram of the neutralization tank in the decomposition state in an embodiment of this utility model.
[0019] In the diagram: 1. Air inlet; 11. Air inlet cylinder; 12. Threaded ring; 13. Hollow cylinder; 131. External thread; 132. Filter cloth; 133. Scraper; 134. Motor; 14. Air inlet pipe; 15. Threaded cap; 16. Air rod; 17. Air pump; 2. Neutralization tank; 21. Drain pipe; 22. Internal thread; 3. Exhaust component; 31. Exhaust cylinder; 311. Exhaust pump; 32. Activated carbon block; 33. Exhaust insert. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0024] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0026] like Figures 1 to 5 As shown, an industrial solid waste hydrochloric acid exhaust gas purification device includes an air inlet 1, a neutralization tank 2, and an exhaust 3. The air inlet 1 includes an air inlet cylinder 11 and a perforated cylinder 13. A screw ring 12 is vertically connected and fixed to the bottom end of the air inlet cylinder 11, and the perforated cylinder 13 is assembled inside the air inlet cylinder 11. An external thread 131 is formed on the bottom of the outer wall of the perforated cylinder 13, and the external thread 131 is threadedly connected to the screw ring 12. A filter cloth 132 is fixed on the inner wall of the perforated cylinder 13, and a scraper 133 is vertically arranged inside the perforated cylinder 13. The top end of the scraper 133 is rotatably connected to the top surface of the perforated cylinder 13, and a motor 134 is vertically fixed to the top surface of the perforated cylinder 13. The output end of the motor 134 is fixed to the top surface of the scraper 133. The top end of the air inlet cylinder 11 is connected and fixed to the top surface of the neutralization tank 2, and the neutralization... On the other side of tank 2, an exhaust component 3 is vertically connected and fixed, and an air inlet pipe 14 is vertically connected and fixed at the bottom of the screw ring 12. The hydrochloric acid waste gas generated by the incineration of industrial solid waste is guided into the air inlet cylinder 11 through the air inlet pipe 14. The perforated cylinder 13 is threaded into the inside of the air inlet cylinder 11. After the waste gas enters, the dust and impurities carried by it are filtered and removed by the perforated cylinder 13 and the filter cloth 132. In order to ensure the filtration effect of the filter cloth 132 on impurities, the motor 134 is started to drive the scraper 133 to rotate. The scraper on the scraper 133 scrapes off the impurities adhering to the filter cloth 132. The air pump 17 on the top pipe of the air inlet cylinder 11 is started to drive the hydrochloric acid waste gas into the neutralization tank 2. The hydrochloric acid in the hydrochloric acid waste gas is neutralized by the alkaline neutralizing liquid added to the neutralization tank 2. Then the waste gas is discharged into the exhaust pipe 31.
[0027] In one embodiment, such as Figure 3 and 5 As shown, the top of the air inlet cylinder 11 is connected to and fixed with a screw cap 15 through a pipe, and the bottom surface of the screw cap 15 is connected to a pipe with a vertically fixed air rod 16. A blower 17 is installed on the pipe of the air inlet cylinder 11. The top of the neutralization tank 2 is open, and the upper side of the inner wall of the neutralization tank 2 is provided with an internal thread 22, which is threadedly assembled with the screw cap 15. The air rod 16 is inserted into the neutralization tank 2. A drain pipe 21 is vertically connected and fixed on the bottom surface of the neutralization tank 2, and a valve is connected and fixed on the drain pipe 21. When using the blower 17 on the top pipe of the air inlet cylinder 11, the hydrochloric acid waste gas is driven through the air rod 16 and introduced into the alkaline neutralizing liquid added to the neutralization tank 2. The hydrochloric acid waste gas is neutralized by the alkaline neutralizing liquid added to the neutralization tank 2. Later, the valve connected and fixed on the drain pipe 21 on the bottom surface of the neutralization tank 2 is opened to discharge the neutralizing liquid in the neutralization tank 2.
[0028] In one embodiment, such as Figure 5As shown, an exhaust pipe 31 is vertically connected and fixed to the outer wall of the neutralization tank 2 via a pipe, and an exhaust pump 311 is connected and installed on the pipe at the bottom of the exhaust pipe 31. The interior of the neutralization tank 2 is filled with activated carbon blocks 32, and an exhaust plug 33 is vertically inserted into the opening of the neutralization tank 2. During use, the exhaust pump 311 connected to the pipe at the bottom of the exhaust pipe 31 is started to introduce the neutralized gas into the exhaust pipe 31. The activated carbon blocks 32 perform secondary adsorption on the gas to remove odors and hydrochloric acid, and then the gas is discharged from the exhaust plug 33.
[0029] In this embodiment, the hydrochloric acid waste gas generated from the incineration of industrial solid waste is guided into the air inlet cylinder 11 through the air inlet pipe 14. The perforated cylinder 13 is threaded into the inside of the air inlet cylinder 11. After the waste gas enters, the dust and impurities carried by it are filtered and removed by the perforated cylinder 13 and the filter cloth 132. In order to ensure the filtration effect of the filter cloth 132, the motor 134 is started to drive the scraper 133 to rotate. The scraper on the scraper 133 scrapes off the impurities adhering to the filter cloth 132. The air pump 17 on the top pipe of the air inlet cylinder 11 is started to drive the hydrochloric acid waste gas into the neutralization tank 2. The air pump 17 on the top pipe of the air inlet cylinder 11 drives the hydrochloric acid waste gas through the air rod. 16. The alkaline neutralizing liquid added to neutralization tank 2 is introduced into the neutralization tank. The hydrochloric acid in the hydrochloric acid waste gas is neutralized by the alkaline neutralizing liquid added to neutralization tank 2. Later, the valve connected to the drain pipe 21 on the bottom surface of neutralization tank 2 is opened to discharge the neutralizing liquid in neutralization tank 2. The hydrochloric acid in the hydrochloric acid waste gas is neutralized by the alkaline neutralizing liquid added to neutralization tank 2. Then the waste gas is discharged into the exhaust pipe 31. The exhaust pump 311 connected to the pipe at the bottom of exhaust pipe 31 is started to bring the neutralized gas into exhaust pipe 31. The activated carbon block 32 is used to perform secondary adsorption on the gas to remove odor and hydrochloric acid. Then it is discharged from the exhaust pipe 33.
[0030] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.
Claims
1. A device for purifying hydrochloric acid waste gas from industrial solid waste, characterized in that, The system includes an air intake component (1), a neutralization tank (2), and an exhaust component (3). The air intake component (1) includes an air intake cylinder (11) and a perforated cylinder (13). A screw ring (12) is vertically connected and fixed to the bottom end of the air intake cylinder (11), and the perforated cylinder (13) is assembled inside the air intake cylinder (11). An external thread (131) is provided at the bottom of the outer wall of the perforated cylinder (13), and the external thread (131) is threadedly connected to the screw ring (12). A filter cloth (132) is fixed on the inner wall of the perforated cylinder (13), and the perforated cylinder (13) has a... A scraper (133) is vertically installed inside. The top end of the scraper (133) is rotatably connected to the top surface of the orifice (13). A motor (134) is vertically fixed to the top surface of the orifice (13). The output end of the motor (134) is fixed to the top surface of the scraper (133). The top end of the air inlet cylinder (11) is connected to and fixed to the top surface of the neutralization tank (2). The exhaust component (3) is vertically connected to and fixed to the other side of the neutralization tank (2). An air inlet pipe (14) is vertically connected to and fixed to the bottom end of the screw ring (12).
2. The industrial solid waste hydrochloric acid exhaust gas purification device according to claim 1, characterized in that: The top of the air inlet cylinder (11) is connected to a screw cap (15) via a pipe, and the bottom surface of the screw cap (15) is connected to a pipe with a vertically fixed air rod (16).
3. The industrial solid waste hydrochloric acid exhaust gas purification device according to claim 2, characterized in that: An air pump (17) is installed on the pipe of the air inlet cylinder (11).
4. The industrial solid waste hydrochloric acid exhaust gas purification device according to claim 2, characterized in that: The neutralization tank (2) has an opening at the top, and an internal thread (22) is provided on the upper side of the inner wall of the neutralization tank (2). The internal thread (22) is threadedly connected to the screw cap (15), and an air rod (16) is inserted into the neutralization tank (2).
5. The industrial solid waste hydrochloric acid exhaust gas purification device according to claim 3, characterized in that: A drain pipe (21) is vertically connected and fixed on the bottom surface of the neutralization tank (2), and a valve is connected and fixed on the drain pipe (21).
6. The industrial solid waste hydrochloric acid exhaust gas purification device according to claim 4, characterized in that: An exhaust pipe (31) is vertically connected and fixed to the outer wall of the neutralization tank (2) through a pipe, and an exhaust pump (311) is connected and installed on the pipe at the bottom end of the exhaust pipe (31).
7. The industrial solid waste hydrochloric acid exhaust gas purification device according to claim 6, characterized in that: The neutralization tank (2) is filled with activated carbon blocks (32), and an exhaust plug (33) is vertically inserted into the opening of the neutralization tank (2).