Tail gas absorption device for bleaching powder production

Abstract

The utility model discloses a tail gas absorption device for bleaching powder production, which belongs to the technical field of tail gas treatment equipment and comprises a box body, a connecting pipe is arranged on one side of the box body, one end of the connecting pipe penetrates through the side wall of the box body and extends into the box body, a frame body is fixed on the inner bottom wall of the box body, and one side of the frame body is communicated with the end part of the connecting pipe. Two tail gas treatment devices are arranged above the frame body and are arranged in parallel, three groups of connecting plates which are uniformly arranged are also welded on the inner wall of the box body, the bottom of each connecting plate is connected with a measurer, the top of the box body is also connected with a semi-spherical cover body, and a sensor capable of detecting chlorine is arranged at the bottom of the cover body. The top of the cover body is connected with an audible and visual alarm for warning. According to the utility model, the chlorine gas and the alkaline solution can be always fully reacted, and the residual concentration of the chlorine gas can be measured through the cooperation of the tail gas detection device and the sensor, so that the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tail gas treatment equipment technical field especially a tail gas absorption device for bleaching powder production. BACKGROUND

[0002] Bleaching powder is a kind of white or off-white powder or granular bleaching agent with strong chlorine smell, which is prepared by the reaction of chlorine and calcium hydroxide (lime). Since chlorine is used in the production of bleaching powder, the incomplete reaction will cause chlorine to overflow in the air. In order to avoid the influence of chlorine overflow on the surrounding environment and workers, a tail gas treatment device is generally used to treat chlorine. The existing treatment equipment only uses simple alkaline solution for treatment when in use, and cannot warn whether chlorine is fully reacted or not, so the practicability is poor.

[0003] After searching, a bleaching powder production tail gas absorption device (Patent No. CN207237671U) is found, which includes a reaction kettle, a gas conveying device, a conveying pipe, a conveying pipe one, a water pipe, an air inlet, an air outlet, a spraying device, a water conveying device, a water pool, an iron-containing material tank and an iron-containing material filter screen. One end of the conveying pipe one is connected with the gas conveying device, and the other end enters the inside of the reaction kettle through the air inlet. One end of the conveying pipe one is connected with the air outlet, and the other end is connected with the water pool. One end of the water pipe is connected with the water pool, and the other end penetrates the surface of the top of the reaction kettle and enters the inside of the reaction kettle and is connected with the spraying device. The iron-containing material filter screen is connected with the inner wall surface of the reaction kettle through its edge. The iron-containing material filter screen has several pieces. The air inlet is located at the top of the reaction kettle, and the air outlet is located at the right surface of the reaction kettle. The device solves the problem of poor stability of the existing equipment when in use. However, the device still has the problems of using simple alkaline solution to absorb chlorine, not ensuring full reaction of chlorine, and not warning the chlorine content in the air, which reduces the practicability of the device. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a tail gas absorption device for bleaching powder production to solve the problems in the background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a tail gas absorption device for bleaching powder production, including the tail gas treatment of bleaching powder production is used box, one side of box is equipped with the connecting pipe with control valve, one end of connecting pipe extends to the inside of box through the lateral wall of box, the inner bottom wall of box is fixed with frame, one side of frame is in communication with the end of connecting pipe, two tail gas treatment devices are equipped with the top of frame and are movably connected with box, two tail gas treatment devices are in parallel, the inner wall of box is still welded with three groups of connecting plates that are evenly arranged, the bottom of connecting plate is connected with the measurer for chlorine concentration detection, the top of box is still connected with the cover body of semicircle sphere, the bottom of cover body is equipped with the sensor that can detect chlorine, the top of cover body is connected with the audible and visual alarm for warning.

[0006] As a preferred implementation, the inside of the frame is provided with several connecting pipes at equal intervals, one side of each connecting pipe is connected with a circular pipe, and the top of the connecting pipe is provided with several penetrating air holes.

[0007] As a preferred implementation, the inner bottom wall of the frame is also provided with a pump body, and the output shaft of the pump body extends to the outside through the lateral wall of the box.

[0008] As a preferred implementation, the end of the tail gas treatment device is provided with two grooves for easy force, and T-shaped sliding plates are welded on the two sides of the tail gas treatment device, and the lateral wall of the sliding plate is slidingly connected with the sliding rail arranged on the inner wall of the box.

[0009] As a preferred implementation, the middle of the tail gas treatment device is also provided with a storage groove, the bottom of the storage groove is provided with a support plate arranged in a hollow manner, and the support plate abuts against the detachable activated carbon plate.

[0010] As a preferred implementation, a mounting plate is welded on the outside of the cover body, the top of the mounting plate is provided with a threaded hole for easy connection, the inner wall of the threaded hole is also provided with a limiting column connected with the bottom of the cover body, and the lateral wall of the limiting column is slidingly connected with the limiting hole arranged on the top of the box.

[0011] As a preferred implementation, an activated carbon layer is connected in the inside of the cover body, a cross-shaped fixing frame is screw-connected to the bottom of the cover body, and a sensor for detecting the chlorine content is connected to the bottom of the fixing frame.

[0012] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0013] The tail gas absorption device for bleaching powder production is provided with a connecting plate in the inside of the box, a measurer is arranged at the bottom of the connecting plate, the chlorine content in the gas in the box is detected, the problem that chlorine still diffuses in the air after the complete reaction of the alkaline solution is avoided, the audible and visual alarm arranged on the top of the cover body is matched, different sounds and color flashes are used to master the chlorine content in the air, and the practicability of the device is improved.

[0014] The tail gas absorption device for bleaching powder production is provided with a connecting pipe in the inside of the frame body, a plurality of through holes are arranged on the top of the connecting pipe, the tail gas containing chlorine gas is uniformly distributed in the alkaline solution in the frame body through the through holes, so that the tail gas is fully reacted, and the tail gas treatment device arranged in the inside of the box body and the active carbon layer arranged in the inside of the cover body are arranged in parallel, so that the tail gas diffused in the air is treated, and the circulation of the alkaline solution in the inside of the frame body is completed through the pump body and the connecting pipe, so that the unreacted and remaining chlorine gas is prevented from diffusing in the air, and the practicability of the device is further improved.

[0015] The device solves the problem that only single alkaline solution is used to treat chlorine gas in the prior art, there is no related chlorine gas detection device and structure for participating in chlorine gas treatment, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a structure diagram of the tail gas absorption device for bleaching powder production.

[0018] Figure 2 It is a structure diagram of the inside of the box body.

[0019] Figure 3 It is a structure diagram of the cover body.

[0020] Figure 4 It is a structure diagram of the frame body.

[0021] Figure 5 It is a structure diagram of the tail gas treatment device.

[0022] Explanation of reference signs:

[0023] In the figure: 1, box body; 2, tail gas treatment device; 21, groove; 22, sliding plate; 23, storage groove; 24, active carbon plate; 3, connecting pipe; 4, transparent window; 5, cover body; 6, sound-light alarm; 7, frame body; 8, connecting plate; 9, mounting plate; 10, threaded hole; 11, sensor; 12, limiting column; 13, active carbon layer; 14, pump body; 15, connecting pipe; 16, round pipe. EMBODIMENT

[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail to avoid obscuring the present application.

[0025] Unless the direction indicated by the direction alone is defined, the up, down, left, right, front, back, inside and outside and other directions involved in this paper are based on the up, down, left, right, front, back, inside and outside and other directions in the drawings shown by the present application, which are described herein.

[0026] The connection mode can adopt existing modes such as bonding, welding, bolt connection, etc., and the actual needs are accurate.

[0027] A tail gas absorption device for bleaching powder production, as shown in Figures 1 to 5

[0028] It comprises:

[0029] The box 1 for tail gas treatment during bleaching powder production will produce part of the tail gas containing chlorine gas, the inside of the box 1 is provided with a structure for chlorine gas treatment, one side of the box 1 is provided with a connecting pipe 3 with a control valve, the end of the connecting pipe 3 is connected with a conveying pipe conveying the tail gas containing chlorine gas, the other end of the connecting pipe 3 extends to the inside of the frame 7 through the side wall of the box 1 and communicates with the connecting pipe 15 arranged in the frame 7, under the action of the circular pipe 16 connected between the connecting pipes 15, the alkaline aqueous solution in the frame 7 is contacted uniformly through the air holes at the top of the connecting pipes 15, and the chlorine gas is treated.

[0030] In order to control the amount of alkaline solution in the frame 7, an alkaline solution filling port is arranged on one side of the box 1, and a sealing cover is arranged on the top of the filling port to avoid the overflow of tail gas through the filling port when the alkaline aqueous solution is not filled, the inner bottom wall of the frame 7 is inclined, and the pump body 14 is installed at the lowest part of the inner bottom wall of the frame 7, which can extract the reacted aqueous solution, cooperate with the addition of the filling port, complete the circulation, and complete the treatment of the circulating aqueous solution and the preparation of alkaline solution through the equipment arranged outside the box 1.

[0031] After the tail gas containing chlorine gas is contacted with the alkaline solution, the acid-base neutralization reaction is avoided, and the overflow of chlorine gas is avoided, and the PH value of the alkaline solution in the frame 7 is kept constant during the circulation and flow of the alkaline solution in the frame 7, so that the reaction can be stable and the treatment effect of chlorine gas can be ensured.

[0032] ​The frame 7 is provided with two exhaust gas treatment devices 2 that are movably connected to the box 1. The two exhaust gas treatment devices 2 are arranged in parallel. Two symmetrical grooves 21 are provided at the ends of the exhaust gas treatment devices 2. The grooves 21 are designed to facilitate force application, thereby facilitating the pulling of the exhaust gas treatment devices 2.

[0033] T-shaped sliding plates 22 are welded on both sides of the exhaust gas treatment device 2. The sliding plates 22 are slidably connected to the slide rails on the inner wall of the box 1. The top of the exhaust gas treatment device 2 is provided with a storage trough 23. The bottom of the storage trough 23 is provided with a hollow support plate. The support plate is connected to the activated carbon plate 24 for treating chlorine gas that has leaked into the air. This allows the activated carbon plate 24 to be disassembled and replaced, which helps to reduce the risk of chlorine gas leakage and improves the practicality of the device.

[0034] The inner wall of the box 1 is also welded with three sets of evenly distributed connecting plates 8. The bottom of the connecting plates 8 is connected to a measuring device for chlorine concentration detection. Together with the control box set on the side wall of the box 1, the chlorine content can be detected according to the designed parameters.

[0035] The top of the enclosure 1 is also connected to a hemispherical cover 5. The side wall of the cover 5 is welded with a mounting plate 9. The top of the mounting plate 9 is provided with a mounting hole, which is connected to a threaded hole 10 at the bottom of the mounting plate 9. The mounting plate 9 is fixed to the top of the enclosure 1 by bolts passing through the mounting hole and the threaded hole 10. Inside the cover 5, there is also an activated carbon layer 13. The bottom of the activated carbon layer 13 abuts against a cross-shaped fixing frame. The end of the fixing frame is detachably connected to the inner wall of the cover 5. A chlorine detection sensor 11 is installed at the bottom of the fixing frame. Through the setting of the sensor 11 and the detector, the air that has been treated and diffused inside the enclosure 1 can be measured. In conjunction with the audible and visual alarm 6 on the top of the cover 5, the audible and visual alarm 6 is set with different frequencies, colors and timbres. By combining and matching them, the range of chlorine content inside the enclosure 1 can be determined when the audible and visual alarm 6 is working.

[0036] To facilitate the installation of the cover 5, four symmetrical limiting posts 12 are provided at the bottom of the cover 5. The limiting posts 12 correspond to the threaded holes 10. A limiting hole is provided at the top of the box 1. The inner wall of the limiting hole is slidably connected to the limiting posts 12, which makes the connection between the cover 5 and the box 1 more convenient.

[0037] A transparent window 4 is provided on one side of the chamber 1. The transparent window 4 is provided to facilitate the inspection of the internal structure of the chamber 1 and to facilitate the observation of the reaction between alkaline solution and chlorine gas. Furthermore, all detachable parts of the device are equipped with sealing strips. Since chlorine gas has strong oxidizing properties, the sealing strips are corrosion-resistant and oxidation-resistant. In addition, the chamber 1 is completely sealed to prevent the leakage of exhaust gas during treatment.

[0038] When the whole tail gas treatment device 2 is carried out and replaced, the inside of the box body 1 needs to be kept from working, and there is no tail gas residue.

[0039] The sound-light alarm 6 and the pump body 14 are all conventional instruments, and the working principles, sizes and models are irrelevant to the functions of the present application, so they will not be described in detail. Since the pump body 14 is in an alkaline environment and a humid environment for a long time, it needs to be treated for moisture-proof and corrosion-resistant, and needs to be regularly maintained and replaced. The control mode of the present application is controlled by the controller, and the control circuit of the controller can be realized by simple programming by the skilled person in the art. The power supply also belongs to the common knowledge in the art, and the present application is mainly used for protecting mechanical devices, so the control mode and circuit connection of the present application will not be explained in detail.

[0040] Working principle

[0041] The tail gas absorption device for bleaching powder production, when using the device, first add the appropriate amount of alkaline solution to the inside of the frame body 7 through the filling port, and then the tail gas containing chlorine is transported to the inside of the connecting pipe 15 through the connecting pipe 3. Under the action of the circular pipe 16 and the gas hole, the chlorine gas uniformly contacts with the alkaline solution through the gas hole. Start the pump body 14 to work, drive the solution in the frame body 7 to circulate, and always keep the chlorine gas reacting with the alkaline solution.

[0042] Then, under the action of the sensor 11 and the detector, the chlorine gas partially dispersed in the air in the box body 1 can be measured, and the active carbon layer 13 and the tail gas treatment device 2 are matched to complete the absorption of the remaining chlorine gas, and the sound-light alarm 6 is matched to complete the detection and alarm of the chlorine gas concentration in the temporal part of the box body 1.

[0043] It should be noted that in this text, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations. The statement "includes a limited element" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tail gas absorption device for bleaching powder production, comprising a housing (1) for treating tail gas during bleaching powder production, wherein a connecting pipe (3) with a control valve is provided on one side of the housing (1), and one end of the connecting pipe (3) extends through the side wall of the housing (1) into the interior of the housing (1), characterized in that: The inner bottom wall of the box (1) is fixed with a frame (7). One side of the frame (7) is connected to the end of the connecting pipe (3). Two exhaust gas treatment devices (2) are movably connected to the box (1) on the top of the frame (7). The two exhaust gas treatment devices (2) are arranged in parallel. Three sets of evenly distributed connecting plates (8) are also welded to the inner wall of the box (1). A measuring device for chlorine concentration detection is connected to the bottom of the connecting plate (8). A hemispherical cover (5) is also connected to the top of the box (1). A sensor (11) capable of detecting chlorine is installed at the bottom of the cover (5). A warning sound and light alarm (6) is connected to the top of the cover (5).

2. The tail gas absorption device for bleaching powder production according to claim 1, characterized in that: The frame (7) has several connecting pipes (15) spaced at equal intervals inside. Each connecting pipe (15) is connected to a round pipe (16) on one side. The top of the connecting pipe (15) has several through-holes.

3. The tail gas absorption device for bleaching powder production according to claim 2, characterized in that: The inner bottom wall of the frame (7) is also provided with a pump body (14), and the output shaft of the pump body (14) extends to the outside through the side wall of the box (1).

4. The tail gas absorption device for bleaching powder production according to claim 1, characterized in that: The exhaust gas treatment device (2) has two grooves (21) at its end for easy force application. T-shaped sliding plates (22) are welded to both sides of the exhaust gas treatment device (2). The side wall of the sliding plate (22) is slidably connected to the slide rail set on the inner wall of the box (1).

5. The tail gas absorption device for bleaching powder production according to claim 4, characterized in that: The exhaust gas treatment device (2) is also provided with a storage trough (23) in the middle. The bottom of the storage trough (23) is provided with a hollowed-out support plate, which abuts against the detachable activated carbon plate (24).

6. The tail gas absorption device for bleaching powder production according to claim 1, characterized in that: The outer side of the cover (5) is welded with an installation plate (9). The top of the installation plate (9) is provided with a threaded hole (10) for easy connection. The inner wall of the threaded hole (10) is also provided with a limiting post (12) connected to the bottom of the cover (5). The side wall of the limiting post (12) is slidably connected to the limiting hole provided on the top of the box (1).

7. The tail gas absorption device for bleaching powder production according to claim 6, characterized in that: The inside of the cover (5) is connected to an activated carbon layer (13), and the bottom of the cover (5) is screwed to a cross-shaped fixing frame, and the bottom of the fixing frame is connected to a sensor (11) for detecting chlorine content.

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