Ammonium nitrate solution evaporation tail gas treatment device

Abstract

The utility model relates to the technical field of tail gas treatment devices, in particular to an ammonium nitrate solution evaporation tail gas treatment device which comprises a venturi scrubber, a tail gas cooler connected with a gas outlet of the venturi scrubber, a dust remover connected with the tail gas cooler and an induced draft fan connected with the dust remover. The venturi scrubber is connected with a tail gas pipeline and a detergent pipeline; the venturi scrubber comprises a venturi tube, a dehydrator connected with the venturi tube and a sprayer arranged in the venturi tube, the venturi tube is connected with a tail gas pipeline, and the sprayer is connected with a detergent pipeline; according to the utility model, the venturi scrubber is arranged, so that large-particle impurities in tail gas can be removed; by arranging the tail gas cooler, tail gas can be cooled; and by arranging the dust remover, fine particles in the tail gas can be taken out, so that the tail gas emission reaches the standard.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment devices, in particular to a tail gas treatment device for evaporation of ammonium nitrate solution. Background Art

[0002] The tail gas generated by the ammonium nitrate solution evaporation system contains ammonium nitrate particles, ammonia, nitrogen oxides, etc., which are easy to pollute the atmospheric environment; the patent with the authorization announcement number CN220345410U discloses an ammonium nitrate two-stage evaporation tail gas dust treatment and recovery device, a tail gas washing tower, an induced draft fan, a primary washing circulation pump, a secondary washing circulation pump; a collecting tank, the upper section of the tail gas washing tower is divided from bottom to top into a filler washing area, a coalescing module demisting area and a fiber bed demisting area; a venturi scrubber is provided on the side of the tail gas washing tower, and a backwashing device b and a backwashing device a are also provided; this device can completely remove the dust in the two-stage evaporation tail gas through the processes of "venturi washing + filler washing + two-stage demisting" and the like, and recover the ammonium nitrate product at the same time; but the structure of this device is complex and the cost is relatively high. Utility Model Content

[0003] The main purpose of the utility model is to provide an ammonium nitrate solution evaporation tail gas treatment device to solve the problems of complex structure and high cost of the ammonium nitrate tail gas treatment device in the above-mentioned prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an ammonium nitrate solution evaporation tail gas treatment device, including a venturi scrubber, an tail gas cooler connected to the air outlet of the venturi scrubber, a dust collector connected to the tail gas cooler, and an induced draft fan connected to the dust collector, wherein the venturi scrubber is connected to an tail gas pipeline and a detergent pipeline.

[0005] Furthermore, the venturi scrubber includes a venturi tube, a dehydrator connected to the venturi tube, and a sprayer arranged in the venturi tube, the venturi tube is connected to the exhaust pipe, and the sprayer is connected to the detergent pipe.

[0006] Furthermore, the detergent pipeline is connected to a washing liquid tank, and the washing liquid tank is connected to the liquid outlet of the venturi scrubber through a circulation pipe.

[0007] Furthermore, the washing liquid tank is connected to a liquid adding pump.

[0008] Furthermore, a circulation pump is installed on the detergent pipeline.

[0009] Furthermore, the dust collector is a plastic sintered plate dust collector.

[0010] The utility model can remove large particle impurities in the tail gas by arranging a Venturi scrubber; can cool the tail gas by arranging a tail gas cooler; and can remove fine particles in the tail gas by arranging a dust collector, so that the tail gas emission meets the standard.

[0011] The utility model has a simple structure and low cost, and the treated tail gas can meet the tail gas emission standard. Description of the Drawings

[0012] The specification drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model.

[0013] Figure 1 It is a schematic structural diagram of an embodiment;

[0014] In the figure: 1, Venturi scrubber; 101, Venturi tube; 102, dehydrator; 103, sprayer; 2, tail gas cooler; 3, dust collector; 4, induced draft fan; 5, washing liquid tank; 6, liquid adding pump; 7, circulation pump; 8, detergent pipeline; 9, tail gas pipeline. Detailed Embodiments

[0015] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail the utility model.

[0016] As Figure 1 shown, according to an embodiment of the utility model, there is provided a device for treating the evaporation tail gas of ammonium nitrate solution, including a Venturi scrubber 1, a tail gas cooler 2 connected to the air outlet of the Venturi scrubber 1, a dust collector 3 connected to the tail gas cooler 2, and an induced draft fan 4 connected to the dust collector 3. The Venturi scrubber 1 is connected with a tail gas pipeline 9 and a detergent pipeline 8; the tail gas cooler 2 is a shell-and-tube heat exchanger, and the dust collector 3 is a sintered plate dust collector.

[0017] The Venturi scrubber 1 includes a Venturi tube 101, a dehydrator 102 connected to the Venturi tube 101, and a sprayer 103 arranged in the Venturi tube 101. The Venturi tube 101 is connected to the tail gas pipeline 9, and the sprayer 103 is connected to the detergent pipeline 8; the detergent is atomized by the sprayer 103 and then enters the Venturi tube 101.

[0018] The detergent pipeline 8 is connected with a washing liquid tank 5, a circulation pump 7 is installed on the detergent pipeline 8, and the washing liquid tank 5 is connected to the liquid outlet of the dehydrator 102 in the Venturi scrubber 1 through a circulation pipe; the tail gas passes through the dehydrator 102 to remove large particle solid impurities inside.

[0019] The washing liquid tank 5 is connected with a liquid adding pump 6, and the liquid adding pump 6 is used to supplement the washing liquid into the washing liquid tank 5.

[0020] The working principle of the above embodiment is as follows: the tail gas is introduced into the Venturi scrubber 1 to remove large particle impurities, then enters the tail gas cooler 2 to cool down, and finally the small particle impurities are removed in the dust collector 3 to meet the emission standard, and finally it is discharged through the induced draft fan 4.

[0021] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An ammonium nitrate solution evaporation tail gas treatment device, characterized in that: The invention comprises a venturi scrubber (1), an exhaust gas cooler (2) connected to the gas outlet of the venturi scrubber (1), a dust collector (3) connected to the exhaust gas cooler (2), and an induced draft fan (4) connected to the dust collector (3); the venturi scrubber (1) is connected to an exhaust gas pipeline (9) and a scrubber pipeline (8).

2. The ammonium nitrate solution evaporation tail gas treatment device according to claim 1, characterized in that: The venturi scrubber (1) comprises a venturi tube (101), a dehydrator (102) connected to the venturi tube (101), and a sprayer (103) arranged in the venturi tube (101), wherein the venturi tube (101) is connected to an exhaust gas pipeline, and the sprayer (103) is connected to a scrubber pipeline (8).

3. The ammonium nitrate solution evaporation tail gas treatment device according to claim 1, characterized in that: The detergent pipeline (8) is connected to a washing liquid tank (5), and the washing liquid tank (5) is connected to the liquid outlet of the Venturi scrubber (1) via a circulation pipe.

4. The ammonium nitrate solution evaporation tail gas treatment device according to claim 3, characterized in that: The washing liquid tank (5) is connected to a liquid adding pump (6).

5. The ammonium nitrate solution evaporation tail gas treatment device according to claim 3, characterized in that: A circulation pump (7) is installed on the detergent pipeline (8).

6. The ammonium nitrate solution evaporation tail gas treatment device according to claim 1, characterized in that: The dust collector (3) is a plastic sintered plate dust collector.

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