A calcining system for a magnesium-based anti-cracking agent

Abstract

The utility model discloses a kind of calcining systems for magnesium anti-cracking agent, including dust removal mechanism, including dust removal cylinder, dust removal piece and air guide piece, dust removal cylinder has dust removal cavity, exhaust cavity and liquid storage cavity, dust removal cylinder is equipped with the air inlet end being communicated at dust removal cavity, and the exhaust end being communicated at liquid storage cavity, dust removal piece is installed in dust removal cavity, dust removal piece can adsorb dust in airflow, and airflow is guided to exhaust cavity, air guide piece is installed in liquid storage cavity, and is communicated with exhaust cavity, air guide piece has multiple air distribution parts, multiple air distribution parts can guide airflow in exhaust cavity to exhaust cavity, and contact with liquid filled in liquid storage cavity. The prior art is solved, high-temperature airflow after dust removal by cloth bag dust collector still contains higher heat, airflow is directly discharged into production workshop, and the problem of temperature rise in workshop is prone to occur.

Description

Technical Field

[0001] This utility model relates to the field of material calcination technology, specifically to a calcination system for magnesium-based crack-resistant agents. Background Technology

[0002] Magnesium-based crack-resistant agent is a functional additive specifically designed to compensate for concrete shrinkage and improve its crack resistance and impermeability. Its core advantage lies in ensuring structural durability through a controllable expansion mechanism. When magnesium-based crack-resistant agent is calcined at high temperatures, it generates a large amount of high-temperature dust-laden flue gas. Due to the high temperature of the flue gas, it needs to be treated by dust removal and cooling before it can be emitted.

[0003] For example, patent document CN222173413U discloses a bag filter dust collector, specifically including a dust collection box, a dust collection hopper fixed and connected to the lower surface of the dust collection box, a control valve installed at the lower end of the dust collection hopper, an air inlet pipe fixed and connected to the side wall of the dust collection box, a fan fixedly connected to the upper surface of the dust collection box, an exhaust pipe fixed and connected to the upper surface of the dust collection box, one end of the exhaust pipe fixedly connected and connected to the air inlet of the fan, and an installation plate fixedly connected to the inner wall of the dust collection box. Through the above technology, the bag filter dust collector can remove dust from high-temperature flue gas, but it cannot cool down the high-temperature flue gas. The high-temperature flue gas is directly discharged into the production workshop, which can easily cause the temperature inside the workshop to rise. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a calcination system for magnesium anti-cracking agents, which solves the problem that in the prior art, high-temperature airflow still contains high heat after being removed by a bag filter, and the airflow is directly discharged into the production workshop, which easily causes the temperature inside the workshop to rise.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a calcination system for magnesium-based crack-resistant agents, including...

[0007] A dust removal mechanism includes a dust removal cylinder, a dust removal component, and an air guide component. The dust removal cylinder has a dust removal chamber, an exhaust chamber, and a liquid storage chamber. The dust removal cylinder is provided with an air inlet end communicating with the dust removal chamber and an exhaust end communicating with the liquid storage chamber. The dust removal component is installed in the dust removal chamber and can adsorb dust in the airflow and guide the airflow to the exhaust chamber. The air guide component is installed in the liquid storage chamber and communicates with the exhaust chamber. The air guide component has multiple air dispersing parts, which can guide the airflow in the exhaust chamber to the exhaust chamber and contact the liquid contained in the liquid storage chamber.

[0008] In one embodiment, the dust collector includes a cylinder, a sleeve, and a partition. The sleeve is installed outside the cylinder and forms an annular cavity with the cylinder. The partition is fixed to the cylinder and the sleeve and divides the annular cavity into a dust collection chamber and an exhaust chamber located above the dust collection chamber. The cylinder is provided with the liquid storage chamber. The air inlet is located at the bottom of the sleeve, and the exhaust end is located at the top of the cylinder.

[0009] In one embodiment, the dust removal component includes a plurality of filter bags, all of which are fixedly connected to the partition plate, and the partition plate has through holes corresponding to the open ends of the filter bags.

[0010] In one embodiment, the air guide includes a connecting block and a plurality of air dispersing parts. The connecting block is fixed to the cylinder and forms an annular air guiding cavity with the cylinder. The cylinder is provided with a plurality of air guiding holes along its circumference for connecting the exhaust cavity and the annular air guiding cavity. The plurality of air dispersing parts are installed on the connecting block and communicate with the annular air guiding cavity, and the plurality of air dispersing parts extend to the bottom of the liquid storage cavity.

[0011] In one embodiment, the dust removal mechanism further includes a stirring element installed at the bottom of the cylinder, the stirring element being used to stir the liquid in the storage chamber.

[0012] In one embodiment, the dust removal mechanism further includes a back-blowing component, which includes an air storage tank and an air blowing component. The air blowing component is installed in the exhaust chamber and has a jet nozzle corresponding to each of the filter bags. The air blowing component is connected to the air storage tank and is capable of blowing high-pressure airflow onto each of the filter bags.

[0013] In one embodiment, the dust removal mechanism further includes a shaking element, which includes a shaking plate, an elastic element, a transmission rod, and a driving element. The shaking plate is disposed inside the dust removal chamber and is connected to the sleeve via the elastic element on both opposite sides. The shaking plate has insertion holes corresponding to each of the filter bags, and each filter bag is inserted into the insertion holes. One end of the transmission rod is fixedly connected to one side of the shaking plate, and the other end of the transmission rod extends to the outside of the sleeve and abuts against the driving element. The driving element is used to drive the shaking plate to maintain a vibrating state.

[0014] In one embodiment, the driving component includes a geared motor and a cam. The geared motor is mounted on a sleeve, and the output end of the geared motor is fixedly connected to the cam. The cam abuts against a roller rotatably disposed at the other end of the transmission rod.

[0015] In one embodiment, the shaking plate is provided with a plurality of mesh holes.

[0016] In one embodiment, the system further includes a gas collecting mechanism and a calcining kiln, wherein the gas collecting mechanism is connected to the gas inlet and is used to collect the flue gas generated during the operation of the calcining kiln.

[0017] Compared with the prior art, the calcination system for magnesium-based crack-resistant agents provided by this utility model has a dust removal chamber, an exhaust chamber, and a liquid storage chamber in the dust removal cylinder. The dust removal cylinder is provided with an air inlet end connected to the dust removal chamber and an exhaust end connected to the liquid storage chamber. The dust removal component is installed in the dust removal chamber and can adsorb dust in the airflow and guide the airflow to the exhaust chamber. The air guide component is installed in the liquid storage chamber and is connected to the exhaust chamber. The air guide component has multiple air dispersing parts, which can guide the airflow in the exhaust chamber to the exhaust chamber and contact the liquid contained in the liquid storage chamber. This effectively ensures the cooling and temperature reduction of the airflow after dust removal, and the multiple air dispersing parts can disperse the airflow, increase the contact area between the airflow and the liquid, and improve the cooling effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a calcination system for a magnesium-based crack-resistant agent provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the dust removal mechanism provided by this utility model;

[0020] Figure 3 yes Figure 2 Enlarged view of region A in the middle;

[0021] Figure 4 yes Figure 2 Enlarged view of region B in the middle;

[0022] Figure 5 This is a partial structural schematic diagram of the vibration component provided in an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the air guide provided in an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0025] To address the technical problem in existing technologies where high-temperature airflow still contains significant heat after dust removal by a baghouse dust collector, and direct discharge into the production workshop can easily cause temperature increases, this invention provides a calcination system for magnesium-based crack-resistant agents. This system first removes dust from the high-temperature flue gas generated during calcination, then cools the airflow by contacting it with a liquid phase, ensuring a lower temperature for the discharged airflow.

[0026] Please see Figures 1-6 , Figures 1-6 A calcination system for a magnesium-based crack-resistant agent, as described in one embodiment of this utility model, includes a dust removal mechanism 1. The dust removal mechanism 1 includes a dust removal cylinder 11, a dust removal component 12, and an air guide component 13. The dust removal cylinder 11 has a dust removal chamber 11a, an exhaust chamber 11b, and a liquid storage chamber 11c. The dust removal cylinder 11 is provided with an air inlet end communicating with the dust removal chamber 11a and an exhaust end communicating with the liquid storage chamber 11c. The dust removal component 12 is installed in the dust removal chamber 11a and can adsorb dust in the airflow and guide the airflow to the exhaust chamber 11b. The air guide component 13 is installed in the liquid storage chamber 11c and communicates with the exhaust chamber 11b. The air guide component 13 has multiple air dispersing parts 132, which can guide the airflow in the exhaust chamber 11b to the exhaust chamber 11b and contact the liquid contained in the liquid storage chamber 11c.

[0027] In actual use, high-temperature flue gas is transported to the dust removal chamber 11a through the air inlet. The dust removal component 12 can adsorb dust in the air and guide the airflow to the exhaust chamber 11b. The airflow enters the liquid storage chamber 11c through the air guide component 13. Multiple air diffusers 132 can disperse the airflow, increase the contact area between the airflow and the liquid, and the airflow will be cooled and can be output through the exhaust end.

[0028] It should be noted that, in one embodiment, the dust collector 11 includes a cylinder 111, a sleeve 112, and a partition 113. The sleeve 112 is installed outside the cylinder 111, and the sleeve 112 and the cylinder 111 enclose an annular cavity. The partition 113 is fixedly connected to the cylinder 111 and the sleeve 112, and divides the annular cavity into a dust collector 11a and an exhaust chamber 11b located above the dust collector 11a. The cylinder 111 is provided with a liquid storage chamber 11c. The air inlet is located at the bottom of the sleeve 112, and the exhaust end is located at the top of the cylinder 111.

[0029] In addition, the bottom of the cylinder 111 is provided with a liquid inlet that is connected to the liquid storage chamber 11c. Liquid can be added to or drained from the liquid storage chamber 11c through the liquid inlet to replace the liquid in the liquid storage chamber 11c.

[0030] Understandably, the liquid in the storage chamber 11c can not only cool down the hot airflow, but also further remove dust from the hot airflow, ensuring a better dust removal effect.

[0031] Based on the above scheme, if the hot gas flow contains acidic or alkaline substances, the liquid can be replaced with sulfuric acid solution or sodium hydroxide solution. It is understood that the inner wall of the liquid storage chamber 11c is provided with an anti-corrosion lining layer.

[0032] In one embodiment, the dust removal component 12 includes a plurality of filter bags, all of which are fixedly connected to the partition plate 113, and the partition plate 113 has through holes corresponding to the open ends of the filter bags; it should be noted that, since the temperature of the flue gas generated by calcination is high, specifically, the filter bags are made of P84 or glass fiber filter membranes, which are suitable for high-temperature flue gas in electromagnetic rotary kilns.

[0033] It should be noted that the air guide 13 is not limited to a specific structure. In one embodiment, the air guide 13 includes a connecting block 131 and a plurality of air dispersing parts 132. The connecting block 131 is fixedly connected to the cylinder 111 and forms an annular air guiding cavity with the cylinder 111. The cylinder 111 is provided with a plurality of air guiding holes 111a along its circumference for connecting the exhaust cavity 11b and the annular air guiding cavity. The plurality of air dispersing parts 132 are installed on the connecting block 131 and communicate with the annular air guiding cavity, and the plurality of air dispersing parts 132 extend to the bottom of the liquid storage cavity 11c.

[0034] Specifically, the gas dispersing section 132 is a gas guide pipe, and each gas guide pipe is arranged at intervals along the periphery of the cylinder 111. Multiple gas guide pipes can disperse the hot gas flow into the liquid storage chamber 11c, thereby increasing the contact area between the hot gas flow and the liquid. It should be noted that the liquid in the liquid storage chamber 11c is room temperature tap water. After the tap water in the liquid storage chamber 11c exchanges heat with the hot gas flow, the temperature of the tap water will rise. The liquid can be replaced through the liquid inlet.

[0035] The liquid level in the storage chamber 11c does not exceed the height of the connecting block 131.

[0036] Based on the above scheme, the dust removal mechanism 1 also includes a stirring element 14, which is installed at the bottom of the cylinder 111 and is used to stir the liquid in the liquid storage chamber 11c.

[0037] It is understandable that stirring the liquid with the agitator 14 can improve the liquid's fluidity, allow the liquid to dissipate heat, and further enhance the cooling effect on the hot airflow.

[0038] Based on the above solution, in one embodiment, the dust removal mechanism 1 further includes a back-blowing component 15, which includes an air storage tank 151 and an air blowing component 152. The air blowing component 152 is installed in the exhaust chamber 11b. The air blowing component 152 has a jet nozzle corresponding to each of the bag cylinders, and the air blowing component 152 is connected to the air storage tank 151. The air blowing component 152 can blow high-pressure airflow onto each of the bag cylinders.

[0039] It should be noted that the gas storage tank 151 contains high-pressure gas, which is ejected through the jet nozzle and can shake off the dust adsorbed on the cloth bag tube.

[0040] In another embodiment, the dust removal mechanism 1 further includes a shaking element 16, which includes a shaking plate 161, an elastic element 162, a transmission rod 163, and a driving element 164. The shaking plate 161 is disposed in the dust removal chamber 11a and is connected to the sleeve 112 via the elastic element 162 on both sides. The shaking plate 161 has insertion holes 161a corresponding to each of the cloth bag tubes, and each of the cloth bag tubes is respectively inserted into the insertion holes 161a. One end of the transmission rod 163 is fixedly connected to one side of the shaking plate 161, and the other end of the transmission rod 163 extends to the outside of the sleeve 112 and abuts against the driving element 164. The driving element 164 is used to drive the shaking plate 161 to maintain a vibrating state.

[0041] It should be noted that the elastic element includes an installation tube, a spring disposed inside the installation tube, and a connecting rod. The installation tube is fixedly connected to the inner wall of the sleeve. One end of the connecting rod is slidably inserted into the installation tube and compresses the spring. The other end of the connecting rod is fixedly connected to the vibrating plate 161. Specifically, two elastic elements are provided on opposite sides of the vibrating plate 161, and the transmission rod 163 is located between the two elastic elements 162 on one side of the vibrating plate 161.

[0042] The driving component 164 includes a geared motor 1641 and a cam 1642. The geared motor 1641 is mounted on the sleeve 112. The output end of the geared motor 1641 is fixedly connected to the cam 1642, and the cam 1642 abuts against the roller 1631 rotatably disposed at the other end of the transmission rod 163.

[0043] Specifically, by driving the cam 1642 to rotate through the geared motor 1641, the shaking plate 161 can be driven to shake, and the shaking plate 161 can shake off the dust adsorbed on the cloth bag tube.

[0044] In addition, based on the above solution, in order to prevent the dust from accumulating on the shaking plate, the shaking plate 161 is specifically provided with multiple mesh holes.

[0045] In this specific embodiment, the calcination system further includes a gas collecting mechanism 2 and a calcination kiln 3. The gas collecting mechanism 2 is connected to the air inlet end and is used to collect the flue gas generated during the operation of the calcination kiln 3. Specifically, the calcination kiln 3 is an electromagnetic rotary kiln. The gas collecting mechanism 2 includes a gas collecting hood and an air extraction component. The gas collecting hood is connected to the air inlet end via the air extraction component and is located above the discharge port of the calcination kiln 3.

[0046] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A calcining system for a magnesium-based anti-cracking agent, characterized by, include A dust removal mechanism includes a dust removal cylinder, a dust removal component, and an air guide component. The dust removal cylinder has a dust removal chamber, an exhaust chamber, and a liquid storage chamber. The dust removal cylinder is provided with an air inlet end communicating with the dust removal chamber and an exhaust end communicating with the liquid storage chamber. The dust removal component is installed in the dust removal chamber and can adsorb dust in the airflow and guide the airflow to the exhaust chamber. The air guide component is installed in the liquid storage chamber and communicates with the exhaust chamber. The air guide component has multiple air dispersing parts, which can guide the airflow in the exhaust chamber to the exhaust chamber and contact the liquid contained in the liquid storage chamber.

2. The calcination system for magnesium-based crack-resistant agents according to claim 1, characterized in that, The dust collector includes a cylinder, a sleeve, and a partition. The sleeve is installed outside the cylinder and forms an annular cavity with the cylinder. The partition is fixed to the cylinder and the sleeve and divides the annular cavity into a dust collection chamber and an exhaust chamber located above the dust collection chamber. The cylinder has a liquid storage chamber. The air inlet is located at the bottom of the sleeve, and the exhaust end is located at the top of the cylinder.

3. The calcining system for a magnesium-based anti-cracking agent according to claim 2, characterized by, The dust removal component includes multiple filter bags, each of which is fixedly connected to the partition plate, and the partition plate has through holes corresponding to the open ends of the filter bags.

4. The calcining system for a magnesium-based anti-cracking agent according to claim 3, characterized by, The air guide component includes a connecting block and multiple air dispersing parts. The connecting block is fixed to the cylinder and forms an annular air guiding cavity with the cylinder. The cylinder is provided with multiple air guiding holes along its circumference for connecting the exhaust cavity and the annular air guiding cavity. The multiple air dispersing parts are installed on the connecting block and communicate with the annular air guiding cavity, and all of the multiple air dispersing parts extend to the bottom of the liquid storage cavity.

5. The calcining system for a magnesium-based anti-cracking agent according to claim 4, characterized by, The dust removal mechanism also includes a stirring element, which is installed at the bottom of the cylinder and is used to stir the liquid in the storage chamber.

6. The calcining system for a magnesium-based anti-cracking agent according to claim 5, characterized by, The dust removal mechanism also includes a back-blowing component, which includes an air storage tank and an air blowing component. The air blowing component is installed in the exhaust chamber and has a jet nozzle corresponding to each of the filter bags. The air blowing component is connected to the air storage tank and can blow high-pressure airflow onto each of the filter bags.

7. The calcining system for a magnesium-based anti-cracking agent according to claim 5, characterized by, The dust removal mechanism further includes a shaking component, which includes a shaking plate, an elastic element, a transmission rod, and a driving element. The shaking plate is disposed inside the dust removal chamber and is connected to the sleeve via the elastic element on both sides. The shaking plate has insertion holes corresponding to each of the filter bags, and each filter bag is inserted into the insertion holes. One end of the transmission rod is fixedly connected to one side of the shaking plate, and the other end of the transmission rod extends to the outside of the sleeve and abuts against the driving element. The driving element is used to drive the shaking plate to maintain a vibrating state.

8. The calcining system for a magnesium-based anti-cracking agent according to claim 7, characterized by, The driving component includes a geared motor and a cam. The geared motor is mounted on the sleeve, and the output end of the geared motor is fixedly connected to the cam. The cam abuts against a roller rotatably disposed at the other end of the transmission rod.

9. The calcination system for magnesium-based crack-resistant agents according to claim 7, characterized in that, The shaking plate has multiple mesh holes.

10. The calcining system for a magnesium-based anti-cracking agent according to claim 9, characterized by, It also includes a gas collecting mechanism and a calcining kiln. The gas collecting mechanism is connected to the gas inlet and is used to collect the flue gas generated during the operation of the calcining kiln.

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