Cement kiln tail gas desulfurization purification device

Abstract

The utility model relates to the technical field of cement kiln desulfurization, and discloses a tail gas desulfurization and purification device for a cement kiln. The cement kiln tail gas desulfurization and purification device comprises a processing kiln, a kiln tail gas purification mechanism is installed above the processing kiln, a kiln tail gas discharge control mechanism is connected to the upper middle portion of the processing kiln, and the kiln tail gas purification mechanism comprises a purification device installed above the processing kiln. The control kiln ring is connected between the processing kilns, the controller is arranged on one side of the control kiln ring, the control ring and the adjusting ring are arranged on the lower portion of the interior of the control kiln ring, one side of the adjusting ring is connected with the controller, the controller is used for adjusting the emission amount of the control ring, and therefore the emission amount of the whole SO2 gas is controlled. The control of the emission of SO2 gas is beneficial to desulfurization of the SO2 gas, and the situation of substandard desulfurization caused by overlarge emission of SO2 gas can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement kiln desulfurization technical field, concretely is a cement kiln tail gas desulfurization purification device. BACKGROUND

[0002] In the cement production process, due to the sulfur element contained in raw materials and fuel, it will be converted into SO2 gas under high temperature in the kiln, which not only pollutes the environment, but also threatens human health, therefore, the development and application of effective desulfurization technology are crucial for the green development of cement industry and environmental protection, and for this purpose, a cement kiln tail gas desulfurization purification device is proposed.

[0003] The existing reference announcement number is: CN219836335U Chinese utility model patent, it discloses a kind of cement kiln desulfurization device, belongs to desulfurization technical field.The technical scheme in this technical field, including: shell, baffle, filler, spray pipe;The upper and lower ends of the shell are respectively provided with gas outlet and gas inlet, a plurality of baffles are fixedly installed in the shell, the shell is divided into a plurality of single layers by the plurality of baffles, a plurality of fillers are laid on the baffle, a plurality of sieve holes are formed in the baffle, the sieve hole is used to pass desulfurization liquid and flue gas and prevent the filler from falling, the gas inlet extends a certain length inward in the shell, a gas inlet fan is arranged at the gas inlet, the gas inlet fan is used to assist air intake, the gas outlet is provided with a gas outlet fan, the gas outlet fan is used to assist air exhaust, a plurality of pressurizing ports are arranged on the shell, a pressurizing fan is arranged in the pressurizing port;The utility model purifies and desulfurizes by multiple single layers, to efficiently purify and desulfurize the flue gas generated by cement kiln.

[0004] Based on the above patent search, and combined with the equipment in the prior art, since sulfur element is generated during cement processing, most of the sulfur element is desulfurized by spraying technology during purification, and part of the gas is still not purified after desulfurization by spraying technology, which still pollutes the environment, and the exhaust emission of cement kiln is large, which increases the difficulty of exhaust gas purification, and these problems affect the use of the device. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a kind of cement kiln tail gas desulfurization purification device, with the advantages of exhaust gas desulfurization and waste discharge control, which solves the above technical problems.

[0007] (II) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: a cement kiln tail gas desulfurization and purification device, including processing kiln, the upper portion of processing kiln is installed with kiln tail gas purification mechanism, the upper portion of processing kiln is connected with kiln tail gas discharge control mechanism, the kiln tail gas purification mechanism includes: the purification device is installed in the upper portion of processing kiln, the upper portion of purification device is connected with the connecting pipe, and one side of connecting pipe is provided with valve, and the inside of purification device is provided with the air pump for high pressure injection, the lower portion of air pump is connected with water pipe, and both sides of water pipe are provided with pipe interface, and the lower portion of water pipe is connected with extension pipeline, the bottom of extension pipeline is provided with the sprinkling device for uniform spraying,

[0009] The kiln tail gas discharge control mechanism includes: a control kiln ring connected to the upper middle portion of the processing kiln, a controller for driving the equipment is arranged on one side of the control kiln ring, a control ring is arranged inside and below the control kiln ring, circular holes are inlaid in the control ring, an adjusting ring for gas discharge control is arranged below the control ring, and an exhaust pipe is connected to the right side of the control kiln ring.

[0010] As a preferred technical scheme of the utility model, a feeding port is formed in the left lower portion of the processing kiln, and a detection outlet is horizontally arranged on one side of the control kiln ring; the processing kiln processes cement.

[0011] As a preferred technical scheme of the utility model, a detector is installed above the detection outlet, a side pipe is connected behind the detection outlet, and an exhaust pipe is interconnected to the right side of the detection outlet; the exhaust pipe discharges waste gas.

[0012] As a preferred technical scheme of the utility model, an installation ring is arranged outside the extension pipeline, connecting rods are connected between the installation rings, the purification device forms a connection relationship between the extension pipeline and the processing kiln, and the sprinkling device is located inside and above the processing kiln; the sprinkling device uniformly sprays the desulfurizing agent.

[0013] As a preferred technical scheme of the utility model, the processing kiln is connected through the control kiln ring, the control kiln ring is interconnected between the exhaust pipe and the detection outlet, the number of circular holes is several, and the size of the control ring and the adjusting ring is consistent; the control kiln ring controls the discharge amount of gas.

[0014] As a preferred technical scheme of the utility model, the detection outlet forms an intercommunication connection relationship between the side pipe and the processing kiln, and a valve is also arranged on one side of the side pipe; the detection outlet detects the processed gas again.

[0015] As the preferred technical scheme of the utility model, the processing kiln is big at the bottom and small at the top, and the exhaust pipe is inserted in one side of the processing kiln, and the processing kiln forms a connecting relationship between the exhaust pipe and the detection outlet.

[0016] Compared with the prior art, the utility model provides a cement kiln tail gas desulfurization and purification device, has the following beneficial effects:

[0017] 1, the utility model discloses a purification device is connected in the upper of processing kiln, adds liquid desulfurization purifying agent in the inside of purification device, and is provided with air pump and water pipe in the inside of purification device, and water pipe is arranged with liquid device through pipeline interface, utilizes the setting of air pump and pressurizes and sprays the liquid in the inside of water pipe, and the uniform spraying of liquid is arranged through the extension pipeline and the sprinkler, and the uniform desulfurization of SO2 gas is carried out, and the detection outlet is arranged on the middle upper side of processing kiln, and the purified gas is discharged through the detection outlet, and the detector is arranged on the upper side of detection outlet, and the content of SO2 gas in the inside of detection outlet is detected, if SO2 gas purification is not up to the standard, the side through pipe is arranged on one side of detection outlet, and the side through pipe is directly connected with purification device, and the secondary desulfurization of SO2 gas is carried out through the setting of purification device and detection outlet, so that the desulfurization of SO2 gas is thorough, reaches the standard of discharge, and plays the effect of protecting the environment.

[0018] 2, the utility model discloses a control kiln ring is connected between processing kiln, and the controller is arranged on one side of control kiln ring, and the control ring and the adjusting ring are arranged in the inside lower of control kiln ring, and one side of adjusting ring is connected with controller, and the discharge amount of control ring is adjusted through the setting of controller, thereby the discharge amount of entire SO2 gas is controlled, and the control of SO2 gas discharge amount is favorable to the desulfurization of equipment, and can prevent the situation of not up to the standard of desulfurization from appearing when SO2 gas discharge amount is too large. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic view of the utility model;

[0020] Figure 2 It is the structure purification device assembly schematic view of the utility model;

[0021] Figure 3 It is the structure control kiln ring assembly schematic view of the utility model;

[0022] Figure 4 It is the structure detection outlet assembly schematic view of the utility model;

[0023] Wherein: 1, processing kiln; 2, feed inlet; 3, control kiln ring; 31, controller; 32, exhaust pipe; 33, control ring; 34, round hole; 35, adjusting ring; 4, purification device; 41, connecting pipe; 42, valve; 43, air pump; 44, water pipe; 45, pipe interface; 46, extension pipe; 47, spraying device; 48, connecting rod; 49, mounting ring; 5, detection outlet; 51, detector; 52, side pipe; 53, air outlet pipe. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0025] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Please refer to Figure 1 Figure 4 ​In this embodiment, a cement kiln tail gas desulfurization and purification device includes a processing kiln 1. A kiln tail gas purification mechanism is installed on the top of the processing kiln 1. A kiln tail gas discharge control mechanism is connected to the upper middle part of the processing kiln 1. A feed inlet 2 is opened on the lower left side of the processing kiln 1. The kiln tail gas discharge control mechanism includes: a control kiln ring 3 connected to the upper middle part of the processing kiln 1. A controller 31 is provided on one side of the control kiln ring 3. A control ring 33 is provided on the lower part of the control kiln ring 3. A round hole 34 is embedded in the inside of the control ring 33. An adjustment ring 35 is provided below the control ring 33. An exhaust pipe 32 is connected to the right side of the control kiln ring 3. The processing kiln 1 is connected through the control kiln ring 3. The control kiln ring 3 is interconnected with the detection outlet 5 through the exhaust pipe 32. The number of round holes 34 is several. The control ring 33 and the adjustment ring 35 are the same size. The processing kiln 1 is shaped with a larger bottom and a smaller top. The exhaust pipe 32 is inserted through one side of the processing kiln 1. The processing kiln 1 is connected to the detection outlet 5 through the exhaust pipe 32.

[0028] Specifically, a control kiln ring 3 is connected between the processing kilns 1. A controller 31 is set on one side of the control kiln ring 3. The controller 31 is used to drive the control kiln ring 3. A control ring 33 and an adjusting ring 35 are set below the control kiln ring 3. The adjusting ring 35 is connected to the controller 31, causing the adjusting ring 35 to open or close at different angles, thereby adjusting the exhaust gas emission of the control ring 33, so that the exhaust gas is discharged reasonably and the desulfurization failure caused by excessive exhaust gas emission is avoided.

[0029] The kiln exhaust gas purification mechanism includes: a purification device 4 installed above the processing kiln 1; a connecting pipe 41 connected to the top of the purification device 4; a valve 42 installed on one side of the connecting pipe 41; an air pump 43 installed inside the purification device 4; a water pipe 44 connected below the air pump 43; pipe interfaces 45 installed on both sides of the water pipe 44; an extension pipe 46 connected below the water pipe 44; a spray device 47 installed at the bottom of the extension pipe 46; mounting rings 49 installed outside the extension pipe 46; connecting rods 48 connected between the mounting rings 49; and the purification device 4 is connected to the processing kiln 1 through the extension pipe 46. The spray device 47 is located inside and above the processing kiln 1.

[0030] Specifically, a purification device 4 is connected above the processing kiln 1. The purification device 4 contains a certain proportion of liquid desulfurization purifying agent. An air pump 43 and a water pipe 44 are installed inside the purification device 4. Several pipe interfaces 45 are provided on both sides of the water pipe 44. The pipe interfaces 45 introduce water from inside the purification device 4. An extension pipe 46 and a spraying device 47 are connected to the bottom of the water pipe 44. By using the air pump 43 to press, the desulfurization purifying agent in the water pipe 44 can be sprayed out from inside the extension pipe 46, and then evenly sprayed out through the spraying device 47, thereby desulfurizing the sulfur dioxide generated inside the processing kiln 1.

[0031] A detection outlet 5 is horizontally arranged on one side of the control kiln ring 3; a detector 51 is installed above the detection outlet 5, and a side pipe 52 is connected to the rear of the detection outlet 5, and an air outlet pipe 53 is interconnected to the right side of the detection outlet 5; the detection outlet 5 is interconnected with the processing kiln 1 through the side pipe 52, and a valve 42 is also provided on one side of the side pipe 52.

[0032] Specifically, the control kiln ring 3 is interconnected with the detection outlet 5 on one side through the exhaust pipe 32. A detector 51 is installed above the detection outlet 5. The detector 51 detects the gas inside the detection outlet 5. The detection outlet 5 is directly connected to the purification device 4 through the side pipe 52. A spray device 47 is also installed at one end of the side pipe 52. When the gas emission inside the detection outlet 5 does not meet the standard, the desulfurization liquid inside the purification device 4 can be discharged through the side pipe 52 to continue desulfurizing the gas inside the detection outlet 5, thereby ensuring that the sulfur dioxide desulfurization meets the standard.

[0033] During operation, the processing kiln 1 processes cement. During processing, sulfur elements in the raw materials and fuel are converted into SO2 gas at high temperatures inside the kiln. Therefore, a purification device 4 is installed above the processing kiln 1. The purification device 4 contains a certain proportion of liquid desulfurization purifying agent and is connected to the processing kiln 1 via an extension pipe 46. An air pump 43 is installed inside the purification device 4, connected to a water pipe 44. Several pipe interfaces 45 are installed on both sides of the water pipe 44, introducing water from inside the purification device 4. Then, using the pressurizing setting of the air pump 43, the liquid desulfurization purifying agent inside the water pipe 44 is pressurized and sprayed out. The liquid desulfurization purifying agent is sprayed out through the water pipe 44, the extension pipe 46, and a spray device 47. The spray device 47 evenly sprays the purifying agent, ensuring full contact between the waste gas and the purifying agent. The gas is discharged to the detection outlet 5 through the exhaust pipe 32 on one side. A detector 51 is installed above the detection outlet 5. The detector 51 monitors the gas inside the detection outlet 5. If the gas does not meet the standard, the purifying agent can be sprayed out through the side pipe 52 on one side, which is directly connected to the purification device 4, to further desulfurize the sulfur dioxide inside the detection outlet 5, so that the sulfur dioxide desulfurization meets the standard. Finally, a control kiln ring 3 is connected between the processing kilns 1. A control ring 33 and an adjusting ring 35 are installed below the control kiln ring 3. Several round holes 34 are embedded inside the control ring 33. The exhaust gas enters the interior of the control kiln ring 3 through the round holes 34. The adjusting ring 35 is connected to the controller 31, which causes the adjusting ring 35 to open or close at different angles, thereby adjusting the exhaust gas emission of the control ring 33. This can prevent the desulfurization difficulty from increasing due to the large gas emission.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cement kiln tail gas desulfurization purification device, comprising a processing kiln (1), a kiln tail gas purification mechanism is installed above the processing kiln (1), a kiln tail gas discharge control mechanism is connected to the upper middle of the processing kiln (1), characterized in that, The kiln tail gas purification mechanism includes: the purification device (4) installed above the processing kiln (1), the upper side of the purification device (4) is connected with the connecting pipe (41), one side of the connecting pipe (41) is provided with the valve (42), the inside of the purification device (4) is provided with the air pump (43), the lower side of the air pump (43) is connected with the water pipe (44), both sides of the water pipe (44) are provided with the pipe interface (45), the lower side of the water pipe (44) is connected with the extension pipe (46), and the bottom of the extension pipe (46) is provided with the spraying device (47). The kiln tail gas exhaust control mechanism includes: the control kiln ring (3) connected to the upper side of the processing kiln (1), one side of the control kiln ring (3) is provided with the controller (31), the inside of the control kiln ring (3) is provided with the control ring (33), the inside of the control ring (33) is inlaid with the circular hole (34), the lower side of the control ring (33) is provided with the adjusting ring (35), and the right side of the control kiln ring (3) is connected with the exhaust pipe (32).

2. A device for desulphurization and purification of off-gas from a cement kiln according to claim 1, characterized in that, The left lower side of the processing kiln (1) is provided with the feeding port (2), and one side of the control kiln ring (3) is horizontally provided with the detection outlet (5).

3. A device for desulphurization and purification of off-gas from a cement kiln according to claim 2, characterized in that, The upper side of the detection outlet (5) is installed with the detector (51), the rear side of the detection outlet (5) is connected with the side pipe (52), and the right side of the detection outlet (5) is interconnected with the exhaust pipe (53).

4. A device for desulphurization and purification of off-gas from a cement kiln according to claim 1, characterized in that, The outside of the extension pipe (46) is provided with the mounting ring (49), the mounting rings (49) are connected with the connecting rod (48), the purification device (4) is connected with the processing kiln (1) through the extension pipe (46), and the spraying device (47) is located in the inside of the processing kiln (1).

5. A device for desulphurization and purification of off-gas from a cement kiln according to claim 2, characterized in that, The processing kiln (1) is connected with the control kiln ring (3), the control kiln ring (3) is interconnected between the exhaust pipe (32) and the detection outlet (5), the number of the circular holes (34) is several, and the sizes of the control ring (33) and the adjusting ring (35) are consistent.

6. A device for desulphurization and purification of off-gas from a cement kiln according to claim 3, characterized in that, The detection outlet (5) is interconnected between the side pipe (52) and the processing kiln (1), and one side of the side pipe (52) is also provided with the valve (42).

7. A device for desulphurization and purification of off-gas from a cement kiln according to claim 2, characterized in that, The processing kiln (1) is large at the bottom and small at the top, the exhaust pipe (32) penetrates one side of the processing kiln (1), and the processing kiln (1) is connected with the detection outlet (5) through the exhaust pipe (32).

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