A magnesium sulfate kiln tail gas treatment device

Abstract

The utility model discloses a kind of magnesium sulfate kiln tail gas treatment devices, it is related to tail gas treatment technical field, including kiln main body, further include: set in the dust chamber of kiln main body outer surface, the top surface of the dust chamber is inserted with side oblique microporous filter plate, the bottom of the one side of dust chamber is inserted with collection drawer. The utility model is through the setting of side oblique microporous filter plate and heat exchange chamber, tail gas produced by kiln main body combustion enters into dust chamber through exhaust pipe and tail gas passage, side oblique microporous filter plate filters and dust-removes particulate matter in tail gas, collection drawer is used for collecting particulate matter, avoid particulate matter to be retained in pipeline and cause blockage and discharge influence air environment, high-temperature tail gas also enters heat exchange chamber by gas pipe, and combustion-supporting air in combustion-supporting gas pipe carries out heat exchange, improve the temperature of combustion-supporting air into kiln combustion chamber, recycle and utilize the waste heat in tail gas, realize energy saving and consumption reduction, improve the thermal efficiency of combustion simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of tail gas treatment technology, specifically a tail gas treatment device for magnesium sulfate kilns. Background Technology

[0002] In the production of magnesium sulfate, the kiln is a key calcination device. During its operation, it generates high-temperature, high-dust-concentration exhaust gas. This exhaust gas has a complex composition, containing not only a large amount of magnesium sulfate dust particles, but also acidic gases such as sulfur dioxide. If directly emitted, it will cause serious pollution to the atmospheric environment. Therefore, it is necessary to treat the exhaust gas from magnesium sulfate kilns.

[0003] Traditional magnesium sulfate kiln tail gas treatment devices are not convenient for recovering and utilizing the waste heat of high-temperature tail gas. The kiln tail gas carries a large amount of high-temperature waste heat, and direct subsequent treatment will result in heat energy waste, which is not conducive to energy saving. Moreover, the contact between high-temperature tail gas and adsorption liquid will cause the adsorption liquid to evaporate and be lost, affecting the balance and properties of the adsorption liquid. Utility Model Content

[0004] This invention provides a magnesium sulfate kiln tail gas treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnesium sulfate kiln tail gas treatment device, comprising a kiln body, and further comprising: a dust removal chamber disposed on the outer surface of the kiln body, wherein a side-sloping microporous filter plate is inserted into the top surface of the dust removal chamber, and a collection drawer is inserted into the bottom of one side of the dust removal chamber; a gas transmission pipe disposed on the top surface of the side-sloping microporous filter plate, wherein a heat exchange chamber is fixedly disposed at one end of the gas transmission pipe, and a cooling pipe is connected to one end of the heat exchange chamber, wherein a bucket lid is fixedly disposed at one end of the cooling pipe; a treatment bucket disposed on the bottom surface of the bucket lid, a stirring assembly on the top surface of the bucket lid, and a combustion-supporting assembly fixedly installed on one side of the outer surface of the kiln body.

[0006] Furthermore, an exhaust pipe is fixedly installed on the top surface of the kiln body, one end of the exhaust pipe is connected to a tail gas passage, and one end of the tail gas passage is connected to a dust removal chamber. The exhaust pipe and tail gas passage facilitate the introduction of the tail gas generated by the combustion of the kiln body into the dust removal chamber.

[0007] Furthermore, the combustion-supporting gas assembly includes a blower fixedly installed on one side of the outer surface of the kiln body, and the output end of the blower is connected to a combustion-supporting gas pipe. The combustion-supporting gas assembly is used to introduce combustion-supporting air into the kiln body.

[0008] Furthermore, the combustion air pipe is fixedly installed inside the heat exchange chamber and connected to the combustion chamber of the kiln body. The heat exchange chamber is fixedly installed at the bottom of the outer surface of the kiln body and is used to heat the combustion air.

[0009] Furthermore, the stirring assembly includes a servo motor fixedly installed on the top surface of the bucket lid, and the output end of the servo motor is fixedly provided with stirring blades. The stirring assembly is used to stir the absorbent liquid.

[0010] Furthermore, an external exhaust pipe is connected to one side of the top surface of the barrel lid, and heat dissipation blades are fixedly installed on the surface of the cooling pipe to facilitate heat dissipation and cooling of the gas in the exhaust pipe.

[0011] Furthermore, sealing gaskets are provided at the connection points of the inclined microporous filter plate, the collection drawer, and the dust removal chamber. A lock is fixedly installed on the outer surface of the collection drawer. The sealing gaskets are used to seal the connection points of the inclined microporous filter plate, the collection drawer, and the dust removal chamber.

[0012] Furthermore, a drain pipe is provided through the bottom of the outer surface of the treatment tank, and a valve is fixedly installed on the surface of the drain pipe to control the opening and closing of the drain pipe.

[0013] Compared with the prior art, this utility model provides a magnesium sulfate kiln tail gas treatment device, which has the following beneficial effects: 1. This magnesium sulfate kiln exhaust gas treatment device, through the setting of a side-sloping microporous filter plate and a heat exchange chamber, allows the exhaust gas generated by the combustion of the main body of the kiln to enter the dust removal chamber through the exhaust pipe and exhaust gas channel. The side-sloping microporous filter plate filters and removes dust from the particulate matter in the exhaust gas, and the collection drawer is used to collect the particulate matter to avoid the particulate matter from accumulating in the pipe and causing blockage, and to prevent the exhaust from affecting the air environment. The high-temperature exhaust gas then enters the heat exchange chamber through the gas supply pipe to exchange heat with the combustion air in the combustion air supply pipe, thereby increasing the temperature of the combustion air entering the kiln combustion chamber, recovering and utilizing the waste heat in the exhaust gas, achieving energy saving and consumption reduction, and improving the thermal efficiency of combustion.

[0014] 2. This magnesium sulfate kiln tail gas treatment device, through the setting of cooling pipes and stirring components, reduces the temperature of the tail gas after heat exchange, and then transports it into the treatment tank through the cooling pipes. The heat dissipation blades on the cooling pipes facilitate further heat dissipation and cooling of the tail gas, preventing high-temperature tail gas from directly entering the treatment tank and causing evaporation loss of the alkaline adsorbent liquid inside, which would affect the balance and properties of the alkaline adsorbent liquid. The servo motor drives the stirring blades to rotate, so that the tail gas and alkaline adsorbent liquid are fully mixed, ensuring the treatment effect of the magnesium sulfate kiln tail gas. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the dust removal chamber, heat exchange chamber, and cooling pipe structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the dust removal chamber of this utility model; Figure 4 This is a schematic diagram of the drawer structure of this utility model; Figure 5 This is a schematic diagram of the stirring assembly structure of this utility model; Figure 6 This is a schematic diagram of the gas-supporting assembly structure of this utility model.

[0016] In the diagram: 1. Kiln body; 2. Dust removal chamber; 3. Side-sloping microporous filter plate; 4. Collection drawer; 5. Gas supply pipe; 6. Heat exchange chamber; 7. Cooling pipe; 8. Bucket lid; 9. Processing bucket; 10. Stirring assembly; 101. Servo motor; 102. Stirring blades; 11. Combustion-supporting assembly; 111. Blower; 112. Combustion-supporting pipe; 12. Exhaust pipe; 13. Tail gas passage; 14. Heat dissipation blades. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-6 This utility model discloses a magnesium sulfate kiln tail gas treatment device, including a kiln body 1, and further including: a dust removal chamber 2 disposed on the outer surface of the kiln body 1, a side-sloping microporous filter plate 3 inserted into the top surface of the dust removal chamber 2, and a collection drawer 4 inserted into the bottom of one side of the dust removal chamber 2; a gas transmission pipe 5 disposed on the top surface of the side-sloping microporous filter plate 3, and a heat exchange chamber 6 fixedly disposed at one end of the gas transmission pipe 5. Through the arrangement of the side-sloping microporous filter plate 3 and the heat exchange chamber 6, the tail gas generated by the combustion of the kiln body 1 enters the dust removal chamber 2 through the exhaust pipe 12 and the tail gas passage 13. The side-sloping microporous filter plate 3 filters and removes dust from the particulate matter in the tail gas, and the collection drawer 4 is used to collect the particulate matter to avoid the particulate matter from accumulating in the pipe and causing blockage and affecting the air environment. The high-temperature tail gas enters the heat exchange chamber 6 through the gas transmission pipe 5 to exchange heat with the combustion air in the combustion air pipe 112, thereby increasing the temperature of the combustion air entering the kiln combustion chamber, recovering and utilizing the waste heat in the tail gas, achieving energy saving and consumption reduction, and improving the thermal efficiency of combustion. One end of the heat exchange chamber 6 is connected to a cooling pipe 7, and a bucket cover 8 is fixedly installed at one end of the cooling pipe 7. A treatment bucket 9 is installed on the bottom surface of the bucket cover 8, and a stirring assembly 10 is installed on the top surface of the bucket cover 8. A combustion-supporting assembly 11 is fixedly installed on one side of the outer surface of the kiln body 1. Through the setting of the cooling pipe 7 and the stirring assembly 10, the temperature of the exhaust gas after heat exchange is reduced, and then it is transported to the treatment bucket 9 through the cooling pipe 7. The heat dissipation blades 14 on the cooling pipe 7 facilitate further heat dissipation and cooling of the exhaust gas, avoiding the direct entry of high-temperature exhaust gas into the treatment bucket 9, which would cause the internal alkaline adsorption liquid to evaporate and be lost, affecting the balance and properties of the alkaline adsorption liquid. The servo motor 101 drives the stirring blades 102 to rotate, so that the exhaust gas and alkaline adsorption liquid are fully mixed, ensuring the treatment effect of the magnesium sulfate kiln exhaust gas.

[0019] Furthermore, an exhaust pipe 12 is fixedly installed on the top surface of the kiln body 1. One end of the exhaust pipe 12 is connected to a tail gas passage 13, and one end of the tail gas passage 13 is connected to the dust removal chamber 2.

[0020] In this embodiment, the exhaust gas generated by the combustion of the kiln body 1 enters the dust removal chamber 2 through the exhaust pipe 12 and the exhaust gas passage 13.

[0021] Furthermore, the combustion-supporting gas assembly 11 includes a blower 111 fixedly installed on one side of the outer surface of the kiln body 1, and the output end of the blower 111 is connected to a combustion-supporting gas pipe 112; the combustion-supporting gas pipe 112 is fixedly installed inside the heat exchange chamber 6 and connected to the combustion chamber of the kiln body 1, and the heat exchange chamber 6 is fixedly installed at the bottom of the outer surface of the kiln body 1.

[0022] In this embodiment, the blower 111 is turned on, and external air is delivered to the combustion chamber of the kiln body 1 through the combustion-supporting pipe 112.

[0023] Furthermore, the stirring assembly 10 includes a servo motor 101 fixedly installed on the top surface of the bucket lid 8, and a stirring blade 102 is fixedly provided at the output end of the servo motor 101.

[0024] In this embodiment, the servo motor 101 drives the stirring blade 102 to rotate, so that the exhaust gas and alkaline adsorption liquid are fully mixed.

[0025] Furthermore, an external exhaust pipe is connected to one side of the top surface of the bucket lid 8, and heat dissipation blades 14 are fixedly installed on the surface of the cooling pipe 7.

[0026] In this embodiment, the external exhaust pipe facilitates exhaust, and the heat dissipation blades 14 facilitate further cooling of the exhaust gas in the cooling pipe 7.

[0027] Furthermore, sealing gaskets are provided at the connection points between the inclined microporous filter plate 3, the collection drawer 4 and the dust removal chamber 2, and a latch is fixedly installed on the outer surface of the collection drawer 4.

[0028] In this embodiment, the sealing gasket is used to seal the connection between the inclined microporous filter plate 3, the collection drawer 4 and the dust removal chamber 2.

[0029] Furthermore, a drain pipe is provided through the bottom of the outer surface of the treatment tank 9, and a valve is fixedly installed on the surface of the drain pipe.

[0030] In this embodiment, the drain pipe facilitates the discharge of the adsorbent.

[0031] The working principle and usage process of this utility model: The exhaust gas generated by the combustion of the kiln body 1 enters the dust removal chamber 2 through the exhaust pipe 12 and the exhaust gas channel 13. The inclined microporous filter plate 3 filters and removes dust from the particulate matter in the exhaust gas. The collection drawer 4 is used to collect particulate matter to avoid the particulate matter from accumulating in the pipe and causing blockage, and to avoid the discharge affecting the air environment. After dust removal, the high-temperature exhaust gas enters the heat exchange chamber 6 through the gas transmission pipe 5, where it exchanges heat with the combustion air in the combustion air pipe 112, thereby increasing the temperature of the combustion air entering the kiln combustion chamber, recovering and utilizing the waste heat in the exhaust gas, achieving energy saving and consumption reduction, and improving the thermal efficiency of combustion. After heat exchange, the temperature of the exhaust gas decreases and is then transported to the treatment tank 9 via the cooling pipe 7. The heat dissipation blades 14 on the cooling pipe 7 facilitate further heat dissipation and cooling of the exhaust gas, preventing the high-temperature exhaust gas from directly entering the treatment tank 9 and causing the internal alkaline adsorption liquid to evaporate and be lost, thus affecting the balance and properties of the alkaline adsorption liquid. The servo motor 101 drives the stirring blades 102 to rotate, which ensures that the exhaust gas and alkaline adsorption liquid are fully mixed, thus guaranteeing the treatment effect of the magnesium sulfate kiln exhaust gas.

[0032] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] 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 magnesium sulfate kiln tail gas treatment device, comprising a kiln body, characterized in that, Also includes: A dust removal chamber is set on the outer surface of the kiln body. A side-sloping microporous filter plate is inserted into the top surface of the dust removal chamber, and a collection drawer is inserted into the bottom of one side of the dust removal chamber. An air supply pipe is installed on the top surface of the inclined microporous filter plate. A heat exchange chamber is fixedly installed at one end of the air supply pipe. A cooling pipe is connected to one end of the heat exchange chamber. A bucket lid is fixedly installed at one end of the cooling pipe. The processing tank is located on the bottom surface of the lid, the stirring assembly is located on the top surface of the lid, and a combustion-supporting assembly is fixedly installed on one side of the outer surface of the kiln body.

2. The magnesium sulfate kiln tail gas treatment device according to claim 1, characterized in that: An exhaust pipe is fixedly installed on the top surface of the kiln body. One end of the exhaust pipe is connected to a tail gas passage, and one end of the tail gas passage is connected to a dust removal chamber.

3. The magnesium sulfate kiln tail gas treatment device according to claim 1, characterized in that: The combustion-supporting unit includes a blower fixedly installed on one side of the outer surface of the kiln body, and the output end of the blower is connected to a combustion-supporting pipe.

4. The magnesium sulfate kiln tail gas treatment device according to claim 3, characterized in that: The combustion-supporting pipe is fixedly installed inside the heat exchange chamber and connected to the combustion chamber of the kiln body. The heat exchange chamber is fixedly installed at the bottom of the outer surface of the kiln body.

5. The magnesium sulfate kiln tail gas treatment device according to claim 1, characterized in that: The stirring assembly includes a servo motor fixedly installed on the top surface of the bucket lid, and stirring blades are fixedly installed at the output end of the servo motor.

6. The magnesium sulfate kiln tail gas treatment device according to claim 1, characterized in that: An external drain pipe is connected to one side of the top surface of the bucket lid, and heat dissipation blades are fixedly installed on the surface of the cooling pipe.

7. The magnesium sulfate kiln tail gas treatment device according to claim 1, characterized in that: The connection between the inclined microporous filter plate, the collection drawer and the dust removal chamber is provided with a sealing gasket, and the outer surface of the collection drawer is fixedly installed with a latch.

8. The magnesium sulfate kiln tail gas treatment device according to claim 1, characterized in that: A drain pipe is provided through the bottom of the outer surface of the treatment tank, and a valve is fixedly installed on the surface of the drain pipe.

Images