CN214598215U

CN214598215U - Cement kiln tail gas sulfur dioxide's desorption system

Info

Publication number: CN214598215U
Application number: CN202120280926.6U
Authority: CN
Inventors: 白会强; 刀永旭; 李家宏
Original assignee: Yunnan Pu'er Tianheng Cement Co ltd
Current assignee: Yunnan Pu'er Tianheng Cement Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-11-05
Anticipated expiration: 2031-02-01

Abstract

The utility model discloses a cement kiln tail gas sulfur dioxide's desorption system, including purifying column, liquid reserve tank and receipts liquid case, bracing piece fixedly connected with secondary purification case is passed through at the top of receiving the liquid case, the inside difference fixed mounting of purifying column and secondary purification case has first active carbon board and second active carbon board, the inside fixedly connected with gas collection fill of purifying column, the top intercommunication of gas collection fill is connected with the second three-way pipe, the fixed cover of right-hand member port of second three-way pipe is equipped with first connecting pipe, the one end that the second three-way pipe was kept away from to first connecting pipe is linked together with the left side bottom of secondary purification case, the top fixedly connected with water pump of liquid reserve tank, the fixed cover of output of water pump is equipped with first three-way pipe. The utility model discloses not only area is little, uses portably, and is good to the sulfur dioxide purifying effect in the cement kiln tail gas moreover, has improved the practicality of device.

Description

Cement kiln tail gas sulfur dioxide's desorption system

Technical Field

The utility model relates to a tail gas purification technical field especially relates to a cement kiln tail gas sulfur dioxide's desorption system.

Background

The cement kiln is rotary kiln equipment of manufacturers in our lives, and can grind various materials under many conditions. One type of rotary kiln equipment is a cement kiln, which is capable of calcining different types of cement. Obtaining the cement clinker with high quality. Cement kiln production line can produce a large amount of tail gases and present the yellow smoke phenomenon of emitting, contains a large amount of sulfur dioxide and solid foreign particles in the yellow smoke, if directly arrange can cause serious pollution to the environment in the air, so need purify the yellow smoke with tail gas cleanup unit and make its emission again.

At present, a desulfurization tower is commonly used for purifying sulfur dioxide in tail gas of a cement kiln, but the desulfurization tower has large occupied area and limited effect of purifying the sulfur dioxide in the tail gas of the cement kiln, so that a system for removing the sulfur dioxide in the tail gas of the cement kiln is provided.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a cement kiln tail gas sulfur dioxide's desorption system, not only area is little, uses portably, and is good to the sulfur dioxide purifying effect in the cement kiln tail gas moreover, has improved the practicality of device.

(II) technical scheme

The utility model provides a cement kiln tail gas sulfur dioxide removal system, which comprises a purification tower, a liquid storage tank and a liquid receiving tank, wherein the top of the liquid receiving tank is fixedly connected with a secondary purification tank through a support rod, the interiors of the purification tower and the secondary purification tank are respectively and fixedly provided with a first activated carbon plate and a second activated carbon plate, the interior of the purification tower is fixedly connected with an air collecting hopper, the top of the air collecting hopper is communicated and connected with a second three-way pipe, the right end port of the second three-way pipe is fixedly sleeved with a first connecting pipe, one end of the first connecting pipe far away from the second three-way pipe is communicated with the left side bottom of the secondary purification tank, the top of the liquid storage tank is fixedly connected with a water pump, the output end of the water pump is fixedly sleeved with a first three-way pipe, the two ends of the first three-way pipe far away from the water pump are respectively communicated and connected with a first shunt pipe and a second shunt pipe, the first shunt tube runs through the right wall of the purification tower and is fixedly connected with the inner left wall of the purification tower, the second shunt tube runs through the left wall of the secondary purification box and is fixedly connected with the inner right wall of the secondary purification box, and the bottoms of the first shunt tube and the second shunt tube are respectively connected with a plurality of first spray headers and a plurality of second spray headers in an intercommunicating manner.

Preferably, a gas detector is fixedly mounted on the left wall of the interior of the purification tower, a detection end of the gas detector penetrates through the left wall of the second three-way pipe and extends into the second three-way pipe, a first electromagnetic valve and a second electromagnetic valve are respectively mounted at two ends, far away from the gas collecting hopper, of the second three-way pipe, and the first electromagnetic valve, the second electromagnetic valve, the gas detector and the external controller are electrically connected.

Preferably, the left side of the purification tower is connected with an air inlet pipe in a communicating manner, the bottom of the air inlet pipe is fixedly connected with a collecting box, and the inside of the air inlet pipe is fixedly connected with a filter screen.

Preferably, the bottom of the air inlet pipe is provided with a rectangular leak hole, and the right edge of the rectangular leak hole is flush with the left side of the filter screen.

Preferably, the bottom of the purification tower is connected with a second connecting pipe in an intercommunicating manner, one end, away from the purification tower, of the second connecting pipe is communicated with the input end of the delivery pump, the left side of the liquid receiving tank is connected with a third connecting pipe in an intercommunicating manner, and one end, away from the liquid receiving tank, of the third connecting pipe is communicated with the output end of the delivery pump.

Preferably, the bottom fixedly connected with of secondary purification case has four bracing pieces that the symmetry set up, four the bottom of bracing piece all with receive the top fixed connection of liquid case, the bottom of secondary purification case is linked together through the fourth connecting pipe with the top of receiving the liquid case.

Preferably, the fixed cover of output of water pump is equipped with the feed liquor pipe, the one end that the water pump was kept away from to the feed liquor pipe runs through the roof of liquid reserve tank and extends to the bottom of liquid reserve tank.

Compared with the prior art, the beneficial effects of the utility model are that:

at first this practical equipment compares in current desulfurizing tower equipment, and area is little, low in manufacturing cost, and is simple and convenient to use, simultaneously this practicality adopts physical adsorption and chemical reaction to combine together, has improved the absorption efficiency to sulfur dioxide in the cement kiln tail gas, through setting up components such as gas detection appearance, first solenoid valve, second solenoid valve and secondary purifying box, makes this practical device can treat the tail gas of emission and carry out sulfur dioxide content and detect, can carry out secondary repetitive processing when not reaching standard for sulfur dioxide purifying effect is better, has improved the practicality of device.

Drawings

FIG. 1 is a front view of a system for removing sulfur dioxide from the tail gas of a cement kiln, according to the present invention;

fig. 2 is the utility model provides an internal structure schematic diagram of a liquid storage tank of a cement kiln tail gas sulfur dioxide removal system.

In the figure: 1 purifying tower, 2 liquid storage tanks, 3 water pumps, 41 first three-way pipes, 42 second three-way pipes, 51 first shunt pipes, 52 second shunt pipes, 61 first spray headers, 62 second spray headers, 71 first activated carbon plates, 72 second activated carbon plates, 81 first electromagnetic valves, 82 second electromagnetic valves, 91 first connecting pipes, 92 second connecting pipes, 93 third connecting pipes, 94 fourth connecting pipes, 10 air inlet pipes, 11 filter screens, 12 collecting tanks, 13 air collecting hoppers, 14 gas detectors, 15 conveying pumps, 16 liquid collecting tanks, 17 supporting rods and 18 secondary purifying tanks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

As shown in FIG. 1-2, the system for removing sulfur dioxide from tail gas of cement kiln provided by the present invention comprises a purification tower 1, a liquid storage tank 2 and a liquid collection tank 16, wherein the top of the liquid collection tank 16 is fixedly connected with a secondary purification tank 18 through a support rod 17, the purification tower 1 and the secondary purification tank 18 are respectively and fixedly provided with a first activated carbon plate 71 and a second activated carbon plate 72, the purification tower 1 is fixedly connected with an air collection hopper 13, the top of the air collection hopper 13 is connected with a second three-way pipe 42, the right end port of the second three-way pipe 42 is fixedly sleeved with a first connection pipe 91, one end of the first connection pipe 91 far away from the second three-way pipe 42 is communicated with the left bottom of the secondary purification tank 18, the top of the liquid storage tank 2 is fixedly connected with a water pump 3, the output end of the water pump 3 is fixedly sleeved with a first three-way pipe 41, the two ends of the first three-way pipe 41 far away from the water pump 3 are respectively connected with a first shunt pipe 51 and a second shunt pipe 52, the first shunt pipe 51 penetrates through the right wall of the purification tower 1 and is fixedly connected with the inner left wall of the purification tower 1, the second shunt pipe 52 penetrates through the left wall of the secondary purification box 18 and is fixedly connected with the inner right wall of the secondary purification box 18, and the bottoms of the first shunt pipe 51 and the second shunt pipe 52 are respectively communicated and connected with a plurality of first spray headers 61 and a plurality of second spray headers 62.

In an alternative embodiment, the gas detector 14 is fixedly installed on the left wall inside the purification tower 1, the detection end of the gas detector 14 penetrates through the left wall of the second tee pipe 42 and extends into the second tee pipe 42, the two ends of the second tee pipe 42, which are far away from the gas collecting hopper 13, are respectively provided with a first electromagnetic valve 81 and a second electromagnetic valve 82, and the first electromagnetic valve 81, the second electromagnetic valve 82 and the gas detector 14 are electrically connected with an external controller.

The controller is model QD 25-10A.

In an alternative embodiment, an air inlet pipe 10 is intercommunicated and connected to the left side of the purification tower 1, a collection box 12 is fixedly connected to the bottom of the air inlet pipe 10, and a filter screen 11 is fixedly connected to the inside of the air inlet pipe 10.

In an alternative embodiment, the bottom of the air inlet pipe 10 is provided with a rectangular leak, and the right edge of the rectangular leak is flush with the left side of the filter screen 11.

In an alternative embodiment, the bottom of the purification tower 1 is connected with a second connecting pipe 92 in a communicating manner, one end of the second connecting pipe 92 away from the purification tower 1 is connected with the input end of the delivery pump 15, the left side of the liquid receiving tank 16 is connected with a third connecting pipe 93 in a communicating manner, and one end of the third connecting pipe 93 away from the liquid receiving tank 16 is connected with the output end of the delivery pump 15.

In an alternative embodiment, four symmetrically arranged support rods 17 are fixedly connected to the bottom of the secondary purification tank 18, the bottom ends of the four support rods 17 are fixedly connected to the top of the liquid receiving tank 16, and the bottom of the secondary purification tank 18 is communicated with the top of the liquid receiving tank 16 through a fourth connecting pipe 94.

In an optional embodiment, the fixed cover of output of water pump 3 is equipped with the feed liquor pipe, and the one end that water pump 3 was kept away from to the feed liquor pipe runs through the roof of liquid reserve tank 2 and extends to the bottom of liquid reserve tank 2.

The working principle is as follows: the tail gas of the cement kiln enters from the left end of the gas inlet pipe 10, firstly, the tail gas is filtered by the filter screen 11, small solid impurity particles in the tail gas can be filtered, the small solid impurity particles pass through the rectangular leak holes under the action of gravity and fall into the collection box 12 for collection, the filtered tail gas enters into the purification tower 1 and moves upwards, meanwhile, the water pump 3 works to extract hydrogen peroxide liquid from the liquid storage box 2 and input the hydrogen peroxide liquid into the first three-way pipe 41, the hydrogen peroxide liquid is divided into a first branch pipe 51 and a second branch pipe 52 through the first three-way pipe 41, the hydrogen peroxide liquid is uniformly divided by the first branch pipe 51 and the second branch pipe 52 and is sprayed out from the first spray headers 61 and the second spray headers 62, so that the hydrogen peroxide liquid can be fully contacted with the tail gas, the purpose of absorbing sulfur dioxide is achieved, the purified or purified liquid falls to the bottom of the purification tower 1 and is transferred to the liquid collection box 16 by the delivery pump 15 for recovery, tail gas after hydrogen oxide liquid sprays purification continues upwards to be purified by further physical absorption of first active carbon plate 71, then in the collection entering second three-way pipe 42 of gas collection fill 13, through gaseous detector 14's detection sulfur dioxide content, open first solenoid valve 81 when up to standard and close second solenoid valve 82 and directly discharge, close first solenoid valve 81 when not up to standard and open second solenoid valve 82 and get into secondary purification case 18 through first connecting pipe 91 and absorb purification once more, make sulfur dioxide purifying effect better, the practicality of device has been improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The cement kiln tail gas sulfur dioxide removal system is characterized by comprising a purification tower (1), a liquid storage tank (2) and a liquid receiving tank (16), wherein the top of the liquid receiving tank (16) is fixedly connected with a secondary purification tank (18) through a support rod (17), the purification tower (1) and the secondary purification tank (18) are respectively and fixedly provided with a first activated carbon plate (71) and a second activated carbon plate (72) inside, the purification tower (1) is fixedly connected with an air collecting hopper (13), the top of the air collecting hopper (13) is communicated and connected with a second three-way pipe (42), a right end port of the second three-way pipe (42) is fixedly sleeved with a first connecting pipe (91), one end of the first connecting pipe (91) far away from the second three-way pipe (42) is communicated with the bottom of the left side of the secondary purification tank (18), the top of the liquid storage tank (2) is fixedly connected with a water pump (3), the fixed cover of output of water pump (3) is equipped with first three-way pipe (41), the both ends that water pump (3) were kept away from in first three-way pipe (41) are intercommunicated respectively and are connected with first shunt tube (51) and second shunt tube (52), first shunt tube (51) run through the right wall of purifying column (1) and with the inside left wall fixed connection of purifying column (1), second shunt tube (52) run through the left wall of secondary purifying box (18) and with the inside right wall fixed connection of secondary purifying box (18), the bottom of first shunt tube (51) and second shunt tube (52) is intercommunicated respectively and is connected with a plurality of first shower heads (61) and a plurality of second shower heads (62).

2. The system for removing sulfur dioxide from the tail gas of the cement kiln as recited in claim 1, wherein a gas detector (14) is fixedly installed on the left wall of the interior of the purification tower (1), the detection end of the gas detector (14) penetrates through the left wall of the second three-way pipe (42) and extends to the interior of the second three-way pipe (42), a first electromagnetic valve (81) and a second electromagnetic valve (82) are respectively installed on two ends of the second three-way pipe (42) far away from the gas collection hopper (13), and the first electromagnetic valve (81), the second electromagnetic valve (82), the gas detector (14) and an external controller are electrically connected.

3. The system for removing sulfur dioxide from the tail gas of a cement kiln as recited in claim 2, wherein the left side of the purification tower (1) is connected with an air inlet pipe (10) in a communicating manner, the bottom of the air inlet pipe (10) is fixedly connected with a collection box (12), and the inside of the air inlet pipe (10) is fixedly connected with a filter screen (11).

4. The system for removing sulfur dioxide from the tail gas of a cement kiln as recited in claim 3, wherein a rectangular leak hole is formed at the bottom of the gas inlet pipe (10), and the right edge of the rectangular leak hole is flush with the left side of the filter screen (11).

5. The system for removing sulfur dioxide from tail gas of a cement kiln as recited in claim 1, wherein a second connecting pipe (92) is connected to the bottom of the purification tower (1) in a communicating manner, one end of the second connecting pipe (92) far away from the purification tower (1) is connected to an input end of the delivery pump (15), a third connecting pipe (93) is connected to the left side of the liquid receiving tank (16) in a communicating manner, and one end of the third connecting pipe (93) far away from the liquid receiving tank (16) is connected to an output end of the delivery pump (15).

6. The system for removing sulfur dioxide from the tail gas of a cement kiln as recited in claim 1, wherein four symmetrically arranged support rods (17) are fixedly connected to the bottom of the secondary purification box (18), the bottom ends of the four support rods (17) are fixedly connected to the top of the liquid collection box (16), and the bottom of the secondary purification box (18) is communicated with the top of the liquid collection box (16) through a fourth connecting pipe (94).

7. The system for removing sulfur dioxide from tail gas of a cement kiln as recited in claim 1, wherein an output end of the water pump (3) is fixedly sleeved with a liquid inlet pipe, and an end of the liquid inlet pipe, which is far away from the water pump (3), penetrates through a top wall of the liquid storage tank (2) and extends to a bottom of the liquid storage tank (2).