Chlorinated tail gas treatment device capable of improving utilization rate of alkali liquor

Abstract

The utility model discloses a tail gas treatment device, in particular to a chlorinated tail gas treatment device capable of improving the utilization rate of alkali liquor, which comprises a device body, the input end and the output end of the device body are respectively connected onto a jet tower and an alkaline washing tower, and the device body comprises a shell and a filler container which is detachably connected inside the shell and is filled with filler. The filler container comprises at least two sections of cage bodies which are detachably connected together, and temporary supporting mechanisms are arranged on the cage bodies. Foam enters from the input end of the device in the scheme, the foam is eliminated through the filler container filled with the filler, the pressure of the alkaline washing tower is balanced, residual alkaline liquor after defoaming flows back to the jet tower from the input end under the action of self weight to continuously absorb chlorine, and the utilization rate of the alkaline liquor is effectively improved. Compared with the traditional scheme, the defoaming device is simple in structure, high in defoaming efficiency and low in energy consumption, and is mainly used for recycling and defoaming tail gas, improving the repeated utilization rate of alkali liquor and reducing the energy consumption.

Description

TECHNICAL FIELD

[0001] The utility model relates to tail gas treatment device field, concretely relates to a chlorine tail gas treatment device of improving lye utilization rate. BACKGROUND

[0002] In the tail gas absorption treatment of industrial waste gas, liquid spray is often sprayed by using the jet tower to contact and mix with waste gas, and harmful substances in the waste gas are removed through chemical reaction. The main scheme principle is as follows:

[0003] Chemical reaction occurs in the process of using sodium hydroxide to absorb chlorine tail gas in the jet tower

[0004] Reaction equation in the jet tower: Cl2+2NaOH=NaCl+NaClO+H2O

[0005] In the above reaction process, a large amount of foam is generated when lye absorbs chlorine tail gas. The generated foam enters the caustic washing tower through the tail gas pipeline, the local pressure is reduced after the foam breaks, the lye in the jet tower is sucked into the caustic washing tower due to the pressure difference, and when the liquid level in the caustic washing tower reaches the high position, the lye that has not been fully utilized is discharged into the secondary sodium tank, thereby causing the problem of low lye utilization rate. The prior art generally uses a circulating power device to circulate lye to treat tail gas, and a defoaming device is arranged to ensure normal operation of the circulation.

[0006] For example, the patent with the patent application number CN200920026528.0 discloses a hydrochloric acid waste gas absorption tower, which comprises a tower body for reaction absorption, an alkali solution pool installed below the tower body, a chlorine tail gas treatment device installed in the alkali solution pool, and an alkali solution circulating power device connected between the tower body and the alkali solution pool. The alkali solution in the alkali solution pool is pumped to the tower body and reacts with a small amount of hydrochloric acid waste gas, the reacted alkali solution is defoamed by the chlorine tail gas treatment device and then enters the alkali solution pool again, the alkali solution is recycled and used to absorb a small amount of hydrochloric acid waste gas. Defoaming treatment reduces the bubbles in the alkali solution pool, prevents a large amount of bubbles from entering the circulating pump, and affects the normal work of the circulating pump.

[0007] The above technical scheme can recycle the lye to absorb hydrochloric acid waste gas, but a separate absorption tower needs to be established, the chlorine tail gas treatment device is located in the alkali solution pool, and it is very troublesome to repair and replace the chlorine tail gas treatment device, which affects production, the alkali solution circulation path is complex and very long, the overall absorption efficiency is low, and the energy consumption is high. Therefore, there is an urgent need for a chlorine tail gas treatment device that is simple and reliable in structure, high in absorption and defoaming efficiency, easy to maintain, and can improve the repeated utilization rate of lye. UTILITY MODEL CONTENTS

[0008] The utility model intends to provide a chlorine tail gas treatment device that can improve the utilization rate of lye, mainly used for tail gas recovery and defoaming, improving the repeated utilization rate of lye, and reducing energy consumption.

[0009] To achieve the above object, the utility model discloses the following technical scheme:

[0010] A chlorination tail gas treatment device for improving the utilization rate of lye, comprising a device body, the input end and the output end of the device body are connected to the jet tower and the caustic washing tower respectively, the device body comprises a shell and a filler container with fillers detachably connected inside the shell, the filler container comprises at least two cage bodies detachably connected together, and a temporary support mechanism is arranged on the cage body.

[0011] The principle and advantages of the present scheme are:

[0012] 1. In actual application, the outlet pipeline of the jet tower is connected to the input end of the device of the present scheme, a large amount of foam generated in the process of absorbing chlorination tail gas by the lye in the jet tower enters the device of the present scheme from the input end, and the foam is eliminated through the filler container with fillers, so as to balance the pressure of the caustic washing tower. The residual lye after the elimination of the foam flows back to the jet tower through the input end of the device of the present scheme under the action of gravity to continue to absorb chlorine. Compared with the prior art, the advantages of the present scheme are that the circulation system and the defoaming system are integrated, the tail gas reaction and defoaming are carried out at the same time, the circulation path is very short, the lye after defoaming can directly flow back to the jet tower for repeated use, the utilization rate of the lye is effectively improved, and the energy consumption is reduced.

[0013] 2. From the installation environment, the height of the installation place of the device of the present scheme is 2m, and the height of the device itself is 1.5m. The whole device is relatively high, and a ladder needs to be climbed to go up and down. The upper operating space can only accommodate a single person for operation. The length of the cage body is 1.2m-1.3m, and the operator cannot take out the cage body as a whole at one time. Therefore, in order to facilitate single-person operation, the cage body is divided into sections in the present scheme. At the same time, considering that after being divided into sections, the conventional bolt and screw hole connection operation is very troublesome and time-consuming and labor-consuming, the cage bodies of the present scheme are connected in a simple and quick detachable manner. Temporary support mechanisms are arranged on the cage bodies. In this way, when the cage body is lifted by holding the handle, the temporary support mechanism can support the cage body on the shell when the temporary support mechanism leaves the inside of the shell, and the operator can free his hands to disassemble and separate the cage body. The cage body is taken out in sections to replace the fillers. After the replacement of the fillers is completed, the cage body in sections is connected and placed back into the inside of the shell. The advantages of the simple and quick detachable connection are that it is conducive to replacing the fillers and maintenance. The sectioned design and the temporary support mechanism are both conducive to single-person operation by the operator. The whole device is simple to operate, efficient, and convenient to maintain.

[0014] Preferably, a connecting mechanism is arranged between the two adjacent cage bodies, the connecting mechanism comprises a fixed plate arranged on the side wall of the end portion of the cage body, the fixed plate is provided with a connecting hole, and a locking pin for fastening the two adjacent fixed plates is detachably connected to the connecting hole.

[0015] Because the cage is 1.2-1.3m long, a single person cannot take out the cage at one time, so the cage is divided into sections. In order to ensure reliable connection between the cages, a fixed plate is arranged on the side wall of the end of the cage. The fixed plate is fixed on the cage to ensure the strength, and the fixed plate is provided with a connecting hole and a lock pin detachably connected with the adjacent two fixed plates. The fixed plate, the connecting hole and the lock pin form a connecting mechanism between the cages. When in use, the lock pin is inserted into the connecting hole to fasten the two fixed plates, and the lock pin is loosened to separate the two fixed plates. The advantage is that after the sectioning, a single person can operate conveniently, and the connecting mechanism meets and realizes the function that the sectioned cages can be reliably connected and separated.

[0016] Preferably, the connecting hole is a strip-shaped lock hole, the lock pin includes a connecting piece, and the two ends of the connecting piece are respectively provided with Locking catch and a pull ring, the length of the lock catch is less than the length of the strip-shaped lock hole and greater than the width of the lock hole.

[0017] The traditional connection method often uses bolts and holes for connection. Although it can reliably connect the sectioned cages, it needs to be operated by tools, which is time-consuming and troublesome. Since the cage is taken out and replaced by a single person in the air, in order to ensure safety, the convenience of operation must be increased to reduce the time of the operator staying in the air. Therefore, in order to realize the quick and convenient disassembly of the cage, the connecting hole is further optimized to be a strip-shaped connecting hole, the length of the lock catch on the lock pin is slightly less than the length of the strip-shaped lock hole and greater than the width of the lock hole, the lock catch is inserted into the lock hole and the pull ring is turned, and since the width of the lock catch is greater than the width of the lock hole, the lock catch can be clamped on the strip-shaped lock hole after the pull ring is turned, the fixed plate is locked, and the connection between the cages is completed. When disassembled, the pull ring is turned, the lock catch is released from the position, and the lock pin is pulled out of the lock hole, and the disassembly of the cage is completed. The advantage is that the strip-shaped lock hole and the lock pin structure are simple, and only "one insertion and one twist" and "one twist and one pull" are needed to complete the connection and disassembly, which simplifies the installation and disassembly operation, improves the operation convenience and efficiency, reduces the staying time, and enhances the safety, and is convenient to maintain.

[0018] Preferably, the lower surface of the fixed plate is further provided with a strip-shaped lock groove coaxial with the strip-shaped lock hole and staggered, and the length and width of the strip-shaped lock groove are greater than the length and width of the lock catch.

[0019] On the basis of the strip-shaped lock hole, in order to further ensure the reliability of the connection, a strip-shaped lock groove coaxial with the strip-shaped lock hole and staggered is additionally arranged on the lower surface of the fixed plate. After the pull ring is turned, since the length and width of the strip-shaped lock groove are greater than the length and width of the lock catch, the lock catch can be clamped in the strip-shaped lock groove, and the strip-shaped lock groove limits the free rotation of the lock pin, preventing the lock pin from being pulled out upward from the strip-shaped lock hole after being turned, and further ensuring the reliability of the connection.

[0020] Preferably, the upper end of the cage is provided with a handle. In order to conveniently take out the cage, a handle is arranged on the cage, and the handle is gripped to take out the cage during operation.

[0021] Preferably, the temporary support mechanism comprises a support member pivotally connected to the cage and a driving member for driving the support member to expand, the support member is supported on the upper end surface of the housing after expansion, and the end of the support member away from the housing is provided with a limiting portion.

[0022] During lifting and lowering of the cage, the following problems exist:

[0023] 1. There is no auxiliary positioning measure when the cage is lowered, and the cage cannot be installed at the center position inside the device at one time.

[0024] 2. How to automatically expand the temporary support mechanism, and how to limit the rotation angle of the support member.

[0025] Considering the convenience of single-person operation, the temporary support mechanism is provided with a support member and a driving member, and the driving member is generally a gas strut, an electromagnet or a spring, etc. When replacing the filler, the operator only needs to hold the handle and lift the cage. When the temporary support mechanism leaves the inside of the housing, the driving member drives the support member to expand and is supported on the housing, helping the operator to temporarily fix the cage. The operator can free his hands to disassemble and separate the cage, which facilitates the disassembly of the cage and solves the problem of automatic expansion of the temporary mechanism. When there is no auxiliary positioning measure for placing the cage, the cage will be installed obliquely, which will affect the efficiency of eliminating foam. If adjustment is made, the operator needs to lift and adjust the position multiple times, which is very troublesome. When the cage is taken out or put in, friction occurs inside the housing, resulting in increased resistance and laborious operation. In order to solve these problems, the end of the support member away from the housing is provided with a limiting portion. When the support member is rotated to the lower surface parallel to the supporting surface, the limiting portion limits the further rotation of the support member. After connecting the segmented cage, the temporary support mechanism is retracted, and then the cage is lowered. When the temporary support mechanism is located inside the housing, the temporary support mechanism is expanded and supported on the inner wall of the housing under the action of the driving member, which plays an auxiliary positioning role and ensures that the cage is located at the center position inside the housing. The temporary support mechanism can automatically expand, the auxiliary positioning eliminates the operation of adjusting the position of the cage, reduces the contact surface of friction and thus reduces the resistance, saves labor, and further optimizes the operation convenience of single-person operation.

[0026] Preferably, the driving member comprises a spring connected between the cage and the support member, and an arc-shaped telescopic member located inside the spring.

[0027] Considering the use environment, device reliability, maintenance convenience and other factors, the spring is selected as the driving force of the driving member, and the arc-shaped telescopic member is arranged inside the spring to ensure that the deformation displacement of the spring is controllable, and to protect the spring and reduce the failure caused by external interference of the spring.

[0028] Preferably, the lower end of the support member is provided with a pulley.

[0029] During the lifting and lowering of the cage, the support and the inside of the shell rub against each other and are worn out.

[0030] The repeated rubbing will cause the support and the inside of the shell to be worn out, so a pulley is arranged on the support, when the support is located in the inside of the shell, under the action of the driving member, the temporary support mechanism is unfolded, the pulley is supported on the wall in the inside of the shell, the sliding friction is changed into rolling friction, the friction between the support and the inside of the shell is reduced, thereby reducing the wear and making the operation more smooth and labor-saving.

[0031] Preferably, the temporary support mechanism comprises a support block arranged on the cage and a groove vertically arranged on the inner wall of the shell, and the support block is slidably connected in the groove.

[0032] If the cage has only two sections, a simpler temporary support mechanism can be adopted, which only comprises a support block and a groove vertically arranged on the inner wall of the shell, and the support block can slide in the groove to reduce the operation resistance, and one person can conveniently disassemble the cage for other operations during the temporary support. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The whole structure schematic diagram of the chlorine tail gas treatment device for improving the alkali utilization rate of the embodiment of the utility model.

[0034] Figure 2 The structure schematic diagram of the cage as a whole of the embodiment of the utility model.

[0035] Figure 3 The schematic diagram of the temporary support mechanism of the embodiment of the utility model.

[0036] Figure 4 The structure schematic diagram of the connecting mechanism of the embodiment of the utility model.

[0037] Figure 5 The structure schematic diagram of the strip-shaped lock hole, the strip-shaped lock groove and the lock pin of the embodiment of the utility model.

[0038] Figure 6 The structure schematic diagram of the temporary support mechanism of the embodiment of the utility model.

[0039] Figure 7 The schematic diagram of the temporary support mechanism in the folded state of the embodiment of the utility model.

[0040] Figure 8 The schematic diagram of the pulley installation position of the temporary support mechanism of the embodiment of the utility model.

[0041] Figure 9 For Figure 7 The schematic diagram of the temporary support mechanism in the folded state being put into the inside of the shell. The schematic diagram of the temporary support mechanism in the folded state being put into the inside of the shell.

[0042] Figure 10 For Figure 7 Schematic view of the temporary support mechanism in the stowed state being prepared to be placed in the housing

[0043] Figure 11 For Figure 7 Schematic view of the temporary support mechanism in the stowed state being prepared to be placed in the housing

[0044] Figure 12 Schematic view of the housing with vertical grooves for the second embodiment of the present application.

[0045] Figure 13 Schematic view of the temporary support mechanism for the second embodiment of the present application.

[0046] Figure 14 Schematic view of the temporary support mechanism in the stowed state being prepared to be placed in the housing

[0047] Figure 15 Schematic view of the temporary support mechanism in the stowed state being prepared to be placed in the housing DETAILED DESCRIPTION

[0048] The application will be further described in detail by specific embodiments:

[0049] In the present application, in order to facilitate the description, the relative position relationship of each component is described according to the layout mode of the drawings in the specification, such as the position relationship of up, down, left, right, etc. is determined according to the layout direction in the drawings of the specification.

[0050] The reference signs in the drawings of the specification include: jet tower 1, caustic washing tower 2, output end 3, input end 4, vertical straight pipe 5, horizontal straight pipe 6, sealing end 7, size head 8, flange 9, packing container 10, cage 11, upper cage 12, lower cage 13, handle 14, upper fixed plate 15, lower fixed plate 16, strip-shaped lock hole 17, strip-shaped lock groove 18, lock pin 19, lock 20, pulley 21, arc-shaped expansion member 22, spring 23, support 24, support block 25, baffle 26, arc-shaped hole 27, groove 28, pull ring 29.

[0051] Embodiment one is basically as shown in the drawings: Figures 1-11

[0052] For the cage with multiple sections, this embodiment can be used, and the following scheme is described by taking a two-section cage as an example.

[0053] ​The utility model provides a kind of chlorination tail gas treatment device for improving lye utilization rate, including device body, by connecting the input end 4 and output end 3 of device body respectively on jet tower 1 and caustic washing tower 2, to reduce circulation path, improve efficiency reduce energy consumption.The device body includes shell and the packing container 10 of being detachably connected in the shell interior with packing, facilitate the replacement of internal packing.Packing container 10 includes two detachably connected together cage 11, the upper end of cage 11 is equipped with handle 14, facilitate single person to extract and detachably install cage 11.

[0054] Connecting mechanism is equipped between two adjacent cages 11, and the connecting mechanism includes fixed plate provided on the side wall of the end of cage 11, the fixed plate is equipped with connecting hole, the connecting hole is detachably connected with lock pin 19 for fastening two adjacent fixed plates, the connecting hole is strip-shaped lock hole 17, and the lock pin 19 includes connecting piece, the two ends of the connecting piece are respectively equipped with lock catch 20 and pull ring 29, the length of lock catch 20 is less than the length of strip-shaped lock hole 17 and greater than the width of strip-shaped lock hole 17, and the lower surface of the fixed plate is further equipped with strip-shaped lock slot 18 coaxial with strip-shaped lock hole 17 and staggered, the length and width of strip-shaped lock slot 18 are greater than the length and width of lock catch 20, and lock catch 20 can be clamped in strip-shaped lock slot 18, to limit the free rotation of lock pin 19, to prevent the lock pin from being pulled out.The connecting mechanism formed by the fixed plate, strip-shaped lock slot 18, strip-shaped lock hole 17 and lock pin 19 can conveniently connect and detach the segmented cage 11, to improve the dismounting efficiency and facilitate maintenance.

[0055] Cage 11 is equipped with temporary support mechanism, as shown in the accompanying drawings Figure 6 The temporary support mechanism includes support 24 rotatably connected to the cage and driving member for driving support 24 to unfold, as shown in the accompanying drawings Figure 7 The upper end of support 24 is limiting portion, for limiting the rotation angle of support 24, when support 24 counterclockwise rotates to the position shown in the accompanying drawings Figure 6 Support 24 is fully unfolded, and the upper end limiting portion of support 24 abuts against the fixed plate.Support 24 supports the upper end surface of the shell after unfolding, to facilitate single person to detach cage 11.Support 24 supports the inner wall of the shell when in the shell, to play the role of auxiliary positioning, and cage 11 can be installed in place at one time.The driving member includes spring connected between the cage and the support and arc-shaped telescopic member, and the arc-shaped telescopic member is located in the spring.The spring is used to drive support to unfold, and the structure is simple and reliable, and the arc-shaped telescopic member 22 in the spring 23 plays the role of limiting and protecting.

[0056] The above scheme combines the shell, the cage 11 detachably connected in the shell and the connecting mechanism and temporary support mechanism on the cage 11 to form a device with convenient packing replacement, high-efficiency defoaming, improved lye recycling rate and reduced energy consumption.

[0057] The connection relationship of each part will be described below in combination with the drawings.

[0058] As shown in the accompanying Figure 1 , the shell comprises a vertical straight pipe 5, a horizontal straight pipe 6, a sealed end 7, a reducer 8, a flange 9, an output end 3, and an input end 4, and the overall structure is T-shaped. The reducer 8 at the bottom of the vertical straight pipe 5 serves as the input end 4 and is connected to the outlet position of the jet tower 1 through the flange 9. The vertical straight pipe 5 is provided with the sealed end 7 at the top. The sealed end 7 is provided with a blind flange seal. The horizontal straight pipe 6 at the right side of the upper part of the vertical straight pipe 5 serves as the output end 3 and is connected to the caustic washing tower 2. The inside of the shell, i.e., the vertical straight pipe 5, is detachably connected with a filler container 10 containing fillers.

[0059] As shown in the accompanying Figure 2 , the cage 11 is divided into an upper cage 12 and a lower cage 13. The upper cage 12 is provided with a handle 14 at the top. The cage 11 is provided with a fixed plate. The fixed plate is provided with a locking pin 19, a strip-shaped lock hole 17, and a strip-shaped lock groove 18. The fixed plate can be divided into a lower fixed plate 16 and an upper fixed plate 15. The end side wall of the upper cage 12 is provided with the lower fixed plate 16, and the end side wall of the lower cage 13 is provided with the upper fixed plate 15. As shown in the accompanying Figure 4 、 5 , the upper fixed plate 15 and the lower fixed plate 16 are aligned and spliced with consistent dimensions. As shown in the accompanying Figure 5 , the upper fixed plate 15 and the lower fixed plate 16 are both provided with the strip-shaped lock hole 17. The lower surface of the upper fixed plate 15 is provided with the strip-shaped lock groove 18. The locking pin 19 comprises a connecting piece. The two ends of the connecting piece are respectively provided with a locking catch 20 and a pull ring 29. The length of the locking catch 20 is smaller than the length of the strip-shaped lock hole 17 and larger than the width of the strip-shaped lock hole 17. The strip-shaped lock hole 17 is a through hole. The strip-shaped lock groove 18 is coaxial with the strip-shaped lock hole 17 and is offset. The length and width of the strip-shaped lock groove 18 are larger than the length and width of the locking catch 20. The depth of the strip-shaped lock groove 18 is 2-3 mm, which limits the free rotation of the locking pin 19 and prevents the locking pin 19 from being pulled out upward from the strip-shaped lock hole 17 due to free rotation. The outer diameter of the pull ring 29 is larger than the length and width of the strip-shaped lock hole 17, which prevents the locking pin 19 from being pulled out downward from the strip-shaped lock hole 17.

[0060] As shown in the accompanying Figure 3 , the connecting mechanism is provided with a temporary support mechanism. The specific structure is shown in the accompanying Figure 6As shown, the temporary support mechanism includes a support member 24 rotatably connected to the cage body and a driving member for driving the support member to unfold, and the driving member includes a spring 23 and an arc-shaped telescopic member 22 located inside the spring 23. The support member 24 is hinged on the fixed plate. The support member 24 is in the shape of a long handle as a whole, and the lower end is a triangular prism. The upper end of the support member 24 is a limiting portion, which plays a limiting role. When the support member 24 is fully opened, the upper end rests on the upper fixed plate 15, and the plane of the lower end of the support member 24 is parallel to the supporting surface. A driving member is provided in the middle of the left side of the support member 24, and the arc-shaped telescopic member 22 is fixed in the middle of the left side of the support member 24. The spring 23 passes through this arc-shaped telescopic member 22. The left end of the spring 23 is fixed on the upper fixed plate 15, and the right end is fixed on the support member 24. The arc-shaped telescopic member 22 and the hinge are concentric but have different diameters to ensure that the rotation trajectory of the arc-shaped telescopic member 22 is fixed and the spring 23 is limited at the same time. The upper fixing plate 15 is provided with an arc-shaped hole 27 of a size that meets the clearance fit of the arc-shaped telescopic member 22. Figure 7 As shown, the support member 24 rotates clockwise and stops rotating when the left side of the lower triangle abuts against the upper fixed plate 15. The outer side of the support member 24 is parallel to the wall of the vertical straight tube 5. Figure 8 As shown, the middle portion of the lower end of the support member 24 is provided with an opening for accommodating the installation pulley 21. Figure 9 As shown, the locking pin 19 is flexibly connected to a blocking piece 26 via a chain or the like, which can be used to limit the retraction of the temporary support mechanism.

[0061] The specific implementation process is as follows:

[0062] During the process of absorbing chlorinated tail gas using alkali solution, the jet tower 1 at the bottom of this device generates a large amount of foam. This foam then enters the device through the input port 4. The foam is eliminated by the packing container 10, which contains filler, thereby balancing the pressure in the alkali washing tower 2. After the foam is eliminated, the remaining alkali solution, under its own weight, flows back through the input port 4 to the jet tower 1 to continue absorbing chlorine. After a period of use, the packing needs to be replaced. The operator opens the blind flange at the sealing end 7, grasps the handle 14, and lifts the upper cage 12, which in turn lifts the lower cage 13. At this time, the lower cage 13 is located inside the vertical straight tube 5, the outer side of the support is parallel to the wall of the vertical straight tube 5, the pulleys 21 on both sides are supported on the inner wall of the vertical straight tube 5, and the pulleys 21 roll under the drive of the cage body 11. When the pulley 21 rolls away from the sealing end 7, the support members 24 on both sides are fully unfolded under the action of the spring 23, and the upper end of the support member 24 is against the upper fixed plate 15 to limit the support member 24 to prevent further rotation. The lower end plane of the support member 24 is parallel to the plane of the flange 9 of the sealing end 7, and the lower cage 13 is temporarily supported on the flange 9 of the sealing end 7.

[0063] The operator presses down the pull ring 29 to make the lock card 20 leave the strip lock groove 18, then rotates the pull ring 29 to pull out the lock pin 19 from the strip lock hole 17, completing the quick disassembly of the upper cage 12 and the lower cage 13. First remove the upper cage 12, then remove the lower cage 13, and remove the cage body 11 in sections to replace the filler. After replacing the filler, use a temporary support mechanism to temporarily support the lower cage 13 on the flange 9 of the sealing end 7. Then stack the upper cage 12 on the lower cage 13 and align the lower fixed plate 16 of the upper cage 12 with the upper fixed plate 15 of the lower cage 13. Align the lock card 20 of the lock pin 19 with the strip lock hole 17 and insert it. Adjust the insertion depth until the lock card 20 at the bottom of the lock pin 19 extends out of the strip lock hole 17. Rotate the pull ring 29 so that the lock card 20 is stuck in the strip lock groove 18 to prevent sliding, and lock the upper fixed plate 15 and the lower fixed plate 16. The quick connection and fixation of the upper cage 12 and the lower cage 13 are completed.

[0064] Then carry out the lowering of cage body 11, as shown in the attached Figure 6 、 7 As shown, the lower end of the support member 24 is pressed, and the support member 24 rotates clockwise along the hinge. Driven by the support member 24, the arc-shaped telescopic member 22 rotates and inserts into the arc-shaped hole 27, compressing the spring 23 until the left end of the lower triangular prism abuts against the fixed member and stops rotating. Figure 9 As shown, the gap between the upper end of the support member 24 and the fixed plate is leaked, and the blocking piece 26 is inserted into the gap between the upper fixed plate 15 and the top of the support member 24, and the temporary support mechanism is retracted for temporary limiting. Figure 11 As shown, cage 11 is lowered. When pulley 21 enters vertical tube 5 from sealed end 7, pull-out stopper 26 releases the restraint on support member 24, ensuring that support member 24 can automatically deploy again under the action of spring 23 when cage 11 is next removed. After the restraint is released, the temporary support mechanism deploys under the action of spring 23, support member 24 rotates counterclockwise, pulley 21 abuts against the inner wall of vertical tube 5, and cage 11 is concentric with vertical tube 5. Pulley 21 rolls to assist in lowering cage 11, ensuring that it is installed in place once.

[0065] Example 2 is as shown in the attached Figures 12-15 As shown:

[0066] This embodiment can be used for a cage body 11 having only two sections.

[0067] As attached Figure 12 As shown, the difference from the first embodiment is that the temporary support mechanism includes a support block 25 provided on the cage body 11 and a groove 28 vertically opened along the inner wall of the shell, and the support block 25 is slidably connected in the groove 28. Figure 13The support block 25 provided on the fixed plate is a triangular prism with rounded corners, and the support block 25 is fixed on the upper fixed plate 15 by a pin and cannot rotate. When it needs to be replaced, the pin is removed and then the support block 25 is replaced. Through the temporary support mechanism composed of the groove 28 and the support block 25, it is convenient for a single person to disassemble the cage body 11. The support block 25 cooperates with the groove 28 to ensure that the cage body 11 is concentric with the vertical straight pipe 5 when it is installed, ensuring that it is installed in place at one time. The simple structure has high stability and is convenient to maintain.

[0068] The connection relationship of each part will be described below in combination with the drawings.

[0069] As shown in the drawings, Figure 12 The inner wall of the vertical straight pipe 5 is provided with a groove 28. As shown in the drawings, Figure 13 The temporary support mechanism includes a support block 25, which is fixed on the upper fixed plate 15 by a pin. The bottom surface of the support block 25 is parallel to the flange 9 of the closed end 7, and the support block 25 and the groove 28 of the vertical straight pipe 5 satisfy the clearance fit.

[0070] The above scheme forms a kind of temporary support mechanism by the shell and the cage body 11 and the connecting mechanism on the cage body 11 and the cage body 11 detachably connected inside the shell, another temporary support mechanism combination, simple, convenient to replace filler, can high-efficiency defoaming, improve the device of the repeated utilization rate of lye, reduce energy consumption.

[0071] The specific implementation process is as follows:

[0072] The same part as example one is omitted here, and the difference lies in the operation of the temporary support mechanism.

[0073] As shown in the drawings, Figure 10 When the filler needs to be replaced, open the blind flange 9 of the closed end 7, lift the upper cage 12 through the handle 14, and then lift the lower cage 13. At this time, the lower cage 13 is located inside the vertical straight pipe 5, and the two side support blocks 25 are located in the groove 28, to ensure that the cage body 11 is concentric with the vertical straight pipe 5. Continue to lift the cage body 11, and the support block 25 slides along the groove 28. When the support block 25 slides out of the closed end 7, rotate the cage body 11, as shown in the drawings, Figure 15 The two side supports are temporarily supported on the flange 9 of the closed end 7, and the operator separates the upper cage 12 and the lower cage 13 according to the disassembly steps of example one.

[0074] After replacing the filler, first use the temporary support mechanism to support the lower cage 13 on the flange 9 of the closed end 7, and then connect the upper cage 12 and the lower cage 13 according to the connection steps of example one. Lift and rotate the cage body 11, as shown in the drawings, Figure 14 Make the support block 25 align with the groove 28, and lower the cage body 11. The support block 25 slides along the groove 28 to ensure that the cage body 11 is concentric with the vertical straight pipe 5 when it slides down, until the bottom of the cage body 11 reaches the bottom of the vertical straight pipe 5.

[0075] The above is only the embodiment of the present application, and the known specific technical solutions and / or common knowledge of characteristics in the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A chlorinated off-gas treatment device for improving caustic utilization, characterized by: The device comprises a device body, an input end and an output end of the device body are connected to a jet tower and a caustic washing tower respectively, the device body comprises a shell and a packing container provided with packing and detachably connected inside the shell, the packing container comprises at least two cage bodies detachably connected together, and a temporary supporting mechanism is arranged on the cage body.

2. The tail gas treatment apparatus for improving caustic utilization according to claim 1, characterized by: A connecting mechanism is arranged between the two adjacent cage bodies, the connecting mechanism comprises a fixing plate arranged on the end side wall of the cage body, the fixing plate is provided with a connecting hole, and a lock pin for fastening the two adjacent fixing plates is detachably connected to the connecting hole.

3. The tail gas treatment apparatus for improving the utilization rate of caustic solution according to claim 2, characterized in that: The connecting hole is a strip-shaped lock hole, the lock pin comprises a connecting piece, the two ends of the connecting piece are respectively provided with a lock catch and a pull ring, the length of the lock catch is less than the length of the strip-shaped lock hole and greater than the width of the lock hole.

4. The caustic utilization rate improving chlorinated off-gas treatment device according to claim 3, characterized by: The lower surface of the fixing plate is further provided with a strip-shaped lock groove coaxial with the strip-shaped lock hole and staggered, and the length and width of the strip-shaped lock groove are greater than the length and width of the lock catch.

5. The caustic utilization improved chlorinated off-gas treatment device according to claim 4, characterized by: The upper end of the cage body is provided with a handle.

6. The tail gas treatment device for improving the utilization rate of caustic solution according to any one of claims 1 to 5, characterized in that: The temporary supporting mechanism comprises a supporting piece rotatably connected to the cage body and a driving piece for driving the supporting piece to unfold, the supporting piece is supported on the upper end surface of the shell after unfolding, and the end of the supporting piece away from the shell is provided with a limiting portion.

7. The caustic utilization improved chlorinated off-gas treatment device according to claim 6, characterized by: The driving piece comprises a spring connected between the cage body and the supporting piece and an arc-shaped telescopic piece inside the spring.

8. The caustic utilization rate improving chlorinated off-gas treatment device according to claim 7, characterized by: The lower end of the supporting piece is provided with a pulley in the middle.

9. The tail gas treatment device for improving the utilization rate of caustic solution according to any one of claims 1 to 5, characterized by: The temporary supporting mechanism comprises a supporting block arranged on the cage body and a groove vertically arranged along the inner wall of the shell, and the supporting block is slidingly connected in the groove.

Images