Ammonium sulfate dust treatment equipment

Abstract

The utility model discloses ammonium sulfate dust treatment equipment which comprises a purifier, a cleaning pipe arranged on a barrel body of the purifier, a mother liquor spraying pipe and a tail gas inlet pipe, the mother liquor spraying pipe and the tail gas inlet pipe are arranged at the upper end of the purifier, and the upper end of the tail gas inlet pipe penetrates through the upper end of the purifier. Compared with the prior art, the device has the advantages that the horn tube is of a liftable structure and can ascend along with ascending of mother liquor in the purifier, so that ammonium sulfate tail gas is closer to the mother liquor, absorption is more sufficient, and the problem that in the prior art, the horn tube is fixed to the upper end of the purifier, and waste is caused is solved. In addition, due to the arrangement of the rotatable flushing section, the flared pipe can be well flushed, crystal residues on the inner wall of the flared pipe and blockage of tail gas diffusion through holes are prevented, the inner wall of the purification cylinder can be rotationally flushed by 360 degrees, and the flushing effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to ammonium sulfate dust treatment equipment. Background Art

[0002] Chinese utility model patent application number 201520616520.5 discloses an ammonium sulfate tail gas purifier. When in use, the tail gas discharged from the cyclone dust collector and containing a large amount of ammonium sulfate dust is input into the top of the purifier through the tail gas inlet pipe and enters the inner cavity of the purifier through the bell pipe. Most of the suspended matter such as ammonium sulfate particles and dust contained in the tail gas is rushed into the ammonium sulfate mother liquor at the bottom of the purifier under the action of inertia and dissolved. A small amount of dust is absorbed by the spray mother liquor. After the end, clean water is injected through the clean water pipe for cleaning.

[0003] With respect to the above-mentioned prior art, the inventor believes that there are at least the following problems:

[0004] 1) When the tail gas enters the purifier through the bell tube, the gas flow rate is drastically slowed down due to the change in the inner diameter of the bell tube. The height of the bell tube cannot be adjusted. When the mother liquid level at the lower end of the purifier is relatively low, there is a large distance between the tail gas discharged from the bell tube and the mother liquid, making it difficult for the tail gas to enter the mother liquid and be dissolved;

[0005] 2) The clean water from the clean water pipe is injected from one side, which has a poor effect on flushing the crystals remaining on the inner wall of the purifier, and there is a blind spot in cleaning.

[0006] Therefore, the purpose of this application is to propose an ammonium sulfate dust control equipment with adjustable trumpet tube height to solve the above problems. Utility Model Content

[0007] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an ammonium sulfate dust control device to solve the above problem.

[0008] To achieve the above purpose, the utility model provides an ammonium sulfate dust treatment device, comprising a purifier, a cleaning pipe arranged on the cylinder of the purifier, and a mother liquid spray pipe and a tail gas inlet pipe installed at the upper end of the purifier, the upper end of the tail gas inlet pipe passes through the upper end of the purifier, and the lower end of the tail gas inlet pipe is connected with a trumpet pipe;

[0009] An exhaust gas diffusion through hole is provided through the side of the trumpet pipe;

[0010] The trumpet pipe is connected with a lifting structure.

[0011] Preferably, a connecting pipe is provided between the bell pipe and the exhaust gas inlet pipe, the lower end of the connecting pipe is fixedly connected to the upper end of the bell pipe, and the upper end of the connecting pipe is slidably connected to the lower end of the exhaust gas inlet pipe.

[0012] Preferably, the lifting structure is an electric cylinder, one end of the electric cylinder is fixed to the purifier, and the other end of the electric cylinder is fixed to the connecting pipe.

[0013] Preferably, a liquid level sensor is installed in the purifier.

[0014] Preferably, the cleaning pipe includes a flushing section vertically established in the bell pipe, and a spray hole is penetrated through the side of the flushing section.

[0015] Preferably, a rotating mechanism for driving the flushing section to rotate is provided on the cleaning pipe, and the rotating mechanism includes a motor fixedly connected to the cleaning pipe, a first gear fixedly connected to the motor output shaft, and a second gear fixedly connected to the flushing section, and the first gear is meshingly connected to the second gear.

[0016] Preferably, an overflow pipe is provided on the side of the purifier, and a return pipe is provided at the bottom of the purifier.

[0017] Compared with the prior art, the utility model has the following benefits:

[0018] 1) When the utility model is in use, after the mother liquid is sprayed for a period of time, the trumpet tube can be completely immersed in the mother liquid, and the ammonium sulfate tail gas can diffuse to the surroundings from the tail gas diffusion through hole on the side of the trumpet tube, so that the ammonium sulfate tail gas can be better absorbed by the ammonium sulfate mother liquid, solving the problem in the prior art that the trumpet tube is fixed at the upper end of the purifier, resulting in a long distance between the ammonium sulfate tail gas and the mother liquid and possible insufficient contact:

[0019] 2) When the mother liquor absorbs the tail gas of ammonium sulfate, crystals will appear, thus affecting the effect of crystallization. The utility model drives the trumpet tube to slowly rise as the depth of the mother liquor increases through the lifting structure, so that the tail gas of ammonium sulfate can contact the mother liquor just sprayed from the upper layer as much as possible;

[0020] 3) In addition, the rotatable flushing section provided in the utility model can not only flush the bell tube well to prevent residual crystals on the inner wall of the bell tube and blockage of the exhaust gas diffusion hole, but also can perform 360° rotation flushing on the inner wall of the purification cylinder, thereby achieving a better flushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the structure of the utility model.

[0024] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0025] In the figure: 10, purifier; 20, cleaning pipe; 21, flushing section; 30, mother liquor spray pipe; 40, exhaust gas inlet pipe; 50, trumpet pipe; 51, exhaust gas diffusion hole; 52, connecting pipe; 60, lifting structure; 61 electric cylinder; 70, liquid level sensor; 80, rotating mechanism; 81, motor; 82, first gear; 83, second gear; 91, overflow pipe; 92, reflux pipe. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-3 The specific implementation modes of the present utility model are further described in detail.

[0027] The utility model discloses an ammonium sulfate dust treatment device, comprising a purifier 10, a cleaning pipe 20 arranged on the cylinder of the purifier 10, and a mother liquor spray pipe 30 and a tail gas inlet pipe 40 installed at the upper end of the purifier 10. The cleaning pipe 20 is used to inject clean water into the purifier 10 to clean the inner wall of the purifier 10, the mother liquor spray pipe 30 is used to spray ammonium sulfate mother liquor into the purifier 10, and the tail gas inlet pipe 40 is used to introduce ammonium sulfate tail gas into the purifier 10. The upper end of the tail gas inlet pipe 40 passes through the upper end of the purifier 10, and the lower end of the tail gas inlet pipe 40 is connected to a trumpet pipe 50. The above structure is the structure of the existing common ammonium sulfate dust treatment equipment, so in this embodiment, it is not described in detail.

[0028] In the prior art, the height of the bell tube 50 is fixed and located at the upper end of the purifier 10, and the distance between the bell tube 50 and the mother liquor at the lower end of the purifier 10 is relatively far, so that the ammonium sulfate tail gas may flow directly upwards before entering the mother liquor after passing through the bell tube 50 into the purifier 10. Although there is a spraying mechanism, the spraying density is limited, so that the tail gas treatment effect may not be very good. In view of this problem, the key improvements of this embodiment are:

[0029] The side of the bell tube 50 is penetrated with an exhaust gas diffusion through hole 51, and the bell tube 50 is connected to a lifting structure 60. When in use, the bell tube 50 is initially located at the lower end of the interior of the purifier 10. Since the ammonium sulfate mother liquid in the purifier 10 gradually increases by spraying, the bell tube 50 is initially close to the ammonium sulfate mother liquid, so that the ammonium sulfate exhaust gas can quickly contact the ammonium sulfate mother liquid after being discharged from the bell tube 50. In addition, as the ammonium sulfate mother liquid increases, the ammonium sulfate mother liquid can completely cover the bell tube 50. In this way, This means that when the ammonium sulfate tail gas flows out through the tail gas diffusion hole 51, it will directly contact the ammonium sulfate mother liquor. In addition, the trumpet tube 50 is connected to the lifting structure 60. As the ammonium sulfate tail gas continues to enter, the concentration of the mother liquor at the lower end of the purifier 10 will gradually increase, and crystallization will begin to occur, which will cause the treatment of the tail gas to deteriorate. The trumpet tube 50 is slowly driven upward by the lifting structure 60, so as to be kept in the upper layer of the ammonium sulfate mother liquor that has just been sprayed out as much as possible. In this way, the treatment capacity of the ammonium sulfate mother liquor is guaranteed.

[0030] An overflow pipe 91 is provided on the side of the purifier 10, and a reflux pipe 92 is provided at the bottom of the purifier 10. When the sprayed mother liquor reaches the height of the overflow pipe 91, the excess ammonium sulfate mother liquor can be automatically discharged. At this time, most of the ammonium sulfate mother liquor has been crystallized after a period of treatment. The ammonium sulfate mother liquor can be discharged through the reflux pipe 92 arranged at the lower end of the purifier 10. After the ammonium sulfate mother liquor is discharged, clean water is injected through the cleaning pipe 20 to clean the interior of the purifier 10.

[0031] Specifically, a connecting pipe 52 is provided between the bell pipe 50 and the exhaust gas inlet pipe 40. The lower end of the connecting pipe 52 is fixedly connected to the upper end of the bell pipe 50, and the upper end of the connecting pipe 52 is slidably connected to the lower end of the exhaust gas inlet pipe 40. The connecting pipe 52 is slidably sleeved on the lower end of the exhaust gas inlet pipe 40, mainly playing a guiding role in the lifting and lowering of the bell pipe 50.

[0032] In this embodiment, the lifting structure 60 is an electric cylinder 61 , one end of the electric cylinder 61 is fixed to the purifier 10 , and the other end of the electric cylinder 61 is fixed to the connecting pipe 51 .

[0033] A liquid level sensor 70 is installed in the purifier 10. The liquid level sensor 70 can detect the height change of the ammonium sulfate mother liquid in the purifier 10, so that the staff can control the electric cylinder 61 to contract and move the trumpet tube 50 upward.

[0034] In some embodiments, the lifting structure 60 may also be an electric hoist or a screw lifting mechanism.

[0035] It is worth mentioning that the cleaning pipe 20 includes a flushing section 21 vertically established in the bell tube 50, and a spray hole is penetrated on the side of the flushing section 21. The flushing section 21 and the bell tube 50 are arranged concentrically and will not interfere with the lifting and lowering of the bell tube 50. Through the setting of the flushing section 21, when the purifier 10 needs to be cleaned, the bell tube 50 can be moved downward first, and the inner wall of the bell tube 50 can be flushed through the flushing section 21 to prevent the inner wall of the bell tube 50 from having crystalline residues and the exhaust gas diffusion hole 51 from being blocked.

[0036] For further information, please refer to Figure 3 A rotating mechanism 80 for driving the flushing section 21 to rotate is provided on the cleaning pipe 20. The rotating mechanism 80 includes a motor 81 fixedly connected to the cleaning pipe 20, a first gear 82 fixedly connected to the output shaft of the motor 81, and a second gear 83 fixedly connected to the flushing section 21. The first gear 82 is meshed with the second gear 83. By connecting the external power supply of the motor 81, the motor 81 drives the first gear 82 to rotate, the first gear 82 drives the second gear 83 to rotate, and the second gear 83 drives the flushing section 21 to rotate, so that the exhaust gas diffusion hole 51 can be completely flushed. In addition, after the trumpet tube 50 is lifted by the lifting structure 60, the rotating flushing of the flushing section 21 can better clean the inner wall of the purifier 10.

[0037] What the utility model aims to achieve is that the height of the bell tube 50 in the purifier 10 can be adjusted through the lifting structure 60, so that the ammonium sulfate tail gas entering the purifier 10 through the bell tube 50 is kept in close contact with the mother liquor at the lower end of the purifier 10, so that the ammonium sulfate tail gas is better absorbed by the ammonium sulfate mother liquor. In addition, through the design of the rotatable structure of the flushing section 21 on the cleaning tube 20, the bell tube 50 and the inner wall of the purifier 10 have a better flushing effect.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An ammonium sulfate dust treatment device, comprising a purifier (10), a cleaning pipe (20) arranged on the cylinder of the purifier (10), and a mother liquid spray pipe (30) and a tail gas inlet pipe (40) installed at the upper end of the purifier (10), wherein the upper end of the tail gas inlet pipe (40) passes through the upper end of the purifier (10), and the lower end of the tail gas inlet pipe (40) is connected to a trumpet pipe (50), characterized in that: An exhaust gas diffusion through hole (51) is provided through the side surface of the bell pipe (50); The bell pipe (50) is connected to a lifting structure (60).

2. A kind of ammonium sulfate dust treatment equipment according to claim 1, characterized in that, A connecting pipe (52) is provided between the bell pipe (50) and the exhaust gas inlet pipe (40), the lower end of the connecting pipe (52) is fixedly connected to the upper end of the bell pipe (50), and the upper end of the connecting pipe (52) is slidably connected to the lower end of the exhaust gas inlet pipe (40).

3. A kind of ammonium sulfate dust treatment equipment according to claim 2, characterized in that, The lifting structure (60) is an electric cylinder (61), one end of the electric cylinder (61) is fixed to the purifier (10), and the other end of the electric cylinder (61) is fixed to the connecting pipe (52).

4. A kind of ammonium sulfate dust treatment equipment according to claim 3, characterized in that, A liquid level sensor (70) is installed in the purifier (10).

5. A kind of ammonium sulfate dust treatment equipment according to claim 1, characterized in that, The cleaning pipe (20) comprises a flushing section (21) vertically arranged in the bell pipe (50), and a spray hole is provided through the side surface of the flushing section (21).

6. A kind of ammonium sulfate dust treatment equipment according to claim 5, characterized in that, The cleaning pipe (20) is provided with a rotating mechanism (80) for driving the flushing section (21) to rotate. The rotating mechanism (80) comprises a motor (81) fixedly connected to the cleaning pipe (20), a first gear (82) fixedly connected to an output shaft of the motor (81), and a second gear (83) fixedly connected to the flushing section (21). The first gear (82) is meshingly connected to the second gear (83).

7. A kind of ammonium sulfate dust treatment equipment according to claim 1, characterized in that, An overflow pipe (91) is provided on the side of the purifier (10), and a return pipe (92) is provided at the bottom of the purifier (10).

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