A flue gas purification and treatment system for an energy-saving rotary kiln

Abstract

The present invention provides a flue gas purification treatment system for an energy-saving rotary kiln, belonging to the technical field of flue gas purification treatment; it includes a rotary kiln body, on which a clamp is fixedly sleeved; a filtering mechanism for flue gas treatment, and the filtering mechanism is connected to the clamp. Through the cooperative setting of the filtering mechanism, the collar, the installation cylinder and the feeding unit, impurities such as particles and dust in the flue gas are removed from the flue gas. Through the cooperative setting of the feeding pipe, the discharging pipe and the third tank body, most of the toxic substances in the flue gas are purified by activated carbon. Through the setting of the air guiding unit and the second tank body, the remaining toxic substances and trace impurities are purified, further protecting the surrounding environment and avoiding diseases such as pneumoconiosis of the staff. By setting the sealing unit, the leakage of flue gas between the filtering mechanism and the rotary kiln body is avoided. By setting the pre-fixing unit, the filtering mechanism is convenient for installation and disassembly, which is beneficial to the installation and operation of the operator.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas purification and treatment, and particularly relates to a flue gas purification and treatment system for an energy-saving rotary kiln. Background Art

[0002] A rotary kiln refers to a rotary calcination kiln. Rotary kilns can be divided into cement kilns, metallurgical and chemical kilns, and lime kilns according to the materials processed. Cement kilns are mainly used for calcining cement clinker, and are divided into two major categories: dry-process cement kilns and wet-process cement kilns. Metallurgical and chemical kilns are mainly used in the metallurgical industry for magnetization roasting of lean iron ore in steel plants, oxidation roasting of chromium and nickel iron ore, roasting of bauxite in refractory material plants, roasting of clinker, aluminum hydroxide in aluminum plants, and roasting of chromite sand and chromite powder in chemical plants and other types of minerals.

[0003] Existing rotary kilns usually have the function of recovering flue gas waste heat, but traditional rotary kilns still do not have the function of treating flue gas. Since the flue gas contains some toxic substances, impurities, etc., if discharged randomly, it will not only cause serious environmental pollution, but also affect the physical and mental health of workers. Therefore, the present application provides a flue gas purification and treatment system for an energy-saving rotary kiln to meet the requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a flue gas purification and treatment system for an energy-saving rotary kiln to solve the problem that existing rotary kilns do not have the function of treating flue gas. Since the flue gas contains some toxic substances, impurities, etc., if discharged randomly, it will not only cause serious environmental pollution, but also affect the physical and mental health of workers.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A flue gas purification and treatment system for an energy-saving rotary kiln, comprising: a rotary kiln body, on which a clamp is fixedly sleeved; a filtering mechanism for flue gas treatment, the filtering mechanism is connected to the clamp, the filtering mechanism includes a connected filtering box, a collar, and an installation cylinder, the collar and the installation cylinder are arranged inside the filtering box, the collar is sleeved on one end of the rotary kiln body, a pre-fixing unit is arranged inside the collar, an arc section is arranged on the collar, a sealing unit is installed inside the arc section, a first groove is formed at the connection between the filtering box and the collar, a circular baffle is fixedly connected inside the filtering box, the circular baffle and the inner cavity of the filtering box form a second groove and a third groove, the third groove is communicated with the first groove, a limiting groove is arranged on the filtering box, a material guiding unit is installed inside the limiting groove, and a gas guiding unit is arranged on the circular baffle.

[0007] Preferably, the installation cylinder is arranged in a funnel shape, and the outer diameter of the installation cylinder is larger than the inner diameter.

[0008] Preferably, the pre-fixing unit includes a first fixing ring and a plurality of first elastic pieces connected to each other. The first fixing ring and the first elastic pieces are of an integral structure, and the side wall of the first elastic piece abuts against the outer side wall of the rotary kiln body.

[0009] Preferably, the sealing unit includes a supplementary component and a gasket connected to each other. The supplementary component is fixedly connected to the arc section, and the gasket abuts against the inner side wall of the rotary kiln body.

[0010] Preferably, the gasket includes a first annular section and a second annular section connected to each other. The first annular section and the second annular section are of an integral structure. An installation groove is formed between the first annular section and the second annular section. The outer side wall of the second annular section abuts against the inner side wall of the rotary kiln body. The supplementary component includes a second fixing ring and a plurality of second elastic pieces connected to each other. The second fixing ring and the second elastic pieces are of an integral structure. The second fixing ring is fixedly connected to the first annular section, and the second elastic pieces are inserted into the second annular section.

[0011] Preferably, the material guiding unit includes a mounting disc, a plurality of first air pipes, an annular filter screen, and an annular clamping plate connected to each other. A plurality of material inlet holes are formed in the mounting disc, and the material inlet holes are communicated with the first air pipes. A plurality of air inlet holes are formed in the annular filter screen, and the air inlet holes are connected to the first air pipes. The mounting disc is screwed onto the mounting cylinder through internal threads, and the annular clamping plate is clamped in the limiting groove.

[0012] Preferably, the air guiding unit includes an opening plate and a second air pipe connected to each other. The second air pipe is installed in a first through hole formed in the circular baffle, and the circular baffle is located in the second groove body.

[0013] Preferably, a water injection pipe, a water discharge pipe, an exhaust pipe, a feed pipe, and a discharge pipe are fixedly connected to the filter box. The water injection pipe, the water discharge pipe, and the exhaust pipe are communicated with the second groove body, and the feed pipe and the discharge pipe are communicated with the third groove body. Sealing covers are installed on the water injection pipe, the water discharge pipe, the exhaust pipe, the feed pipe, and the discharge pipe.

[0014] Preferably, a pair of jack plates are fixedly connected to the outer side wall of the filter box. The pair of jack plates are symmetrically arranged. The clamp includes a fixed circular ring and two insertion ring plates. The jack plates correspond to the insertion ring plates. An insertion pin is arranged above the jack plates, and the bottom end of the insertion pin penetrates through the jack plates and the insertion ring plates.

[0015] Preferably, a pair of handles are fixedly connected to the outer side wall of the filter box. The pair of handles are symmetrically arranged.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above solution, through the cooperative setting of the filter box, the collar, the mounting cylinder and the material guiding unit, when in use, when the flue gas passes through the feeding hole, the first air pipe and the air inlet hole and enters the first tank body, the flue gas entering the first tank body will be filtered by the annular filter screen, and the filtered flue gas will enter the third tank body, so that impurities such as particles and dust in the flue gas are filtered. When it is necessary to clean the impurities, by pulling out the sealing plug, the dust can be cleaned out from the discharging hole, so that impurities such as particles and dust in the flue gas are removed from the flue gas, avoiding the pollution of the surrounding environment by the particles, dust and other impurities, and also avoiding the occurrence of diseases such as pneumoconiosis of the staff.

[0018] Through the cooperative setting of the feeding pipe, the discharging pipe and the third tank body, when in use, activated carbon can be placed in the third tank body through the feeding pipe first. When the filtered flue gas enters the third tank body, it will come into contact with the activated carbon, and the activated carbon will filter the flue gas. When it is necessary to replace the activated carbon, the sealing cover on the discharging pipe can be removed so that the activated carbon to be replaced can be removed through the discharging pipe, thus facilitating the replacement, and most of the toxic substances in the flue gas are purified by the activated carbon.

[0019] Through the setting of the air guiding unit and the second tank body, the gas purified by the activated carbon will enter the second tank body through the perforated plate and the second air pipe, and is purified by the purification liquid in the second tank body. The purified clean gas will be discharged through the exhaust pipe. When it is necessary to change the water, by removing the sealing cover on the sewer pipe, the purification liquid is discharged, and then it can be injected through the water injection pipe, so that the remaining toxic substances and trace impurities are purified, further protecting the surrounding environment and avoiding damage to the bodies of the operators.

[0020] By setting the sealing unit, during use, the first annular section will always be in contact with the inner wall of the rotary kiln body through the second elastic sheet, avoiding the leakage of flue gas between the filter box and the rotary kiln body.

[0021] By setting the pre-fixing unit, during installation, while the collar is sleeved with the rotary kiln body, the first elastic sheet will be in contact with the outer wall of the rotary kiln body, so that the filtering mechanism and the rotary kiln body are pre-fixed. Further pushing the filter box will make the jacking plate contact with the pinning ring, and then inserting the pin will fix the filtering mechanism and the clamp, so that the filtering mechanism is convenient for installation and disassembly, avoiding the complex installation operation process and being more conducive to the installation operation of the operator. Description of the Drawings

[0022] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0023] Figure 1 Schematic three-dimensional structure diagram of the flue gas purification treatment system for an energy-saving rotary kiln;

[0024] Figure 2 Schematic three-dimensional structure diagram of a partial sectional view of the flue gas purification treatment system for an energy-saving rotary kiln;

[0025] Figure 3 Schematic three-dimensional structure diagram of a partial sectional view of the cooperation between the rotary kiln body and the filtering mechanism;

[0026] Figure 4 For Figure 3 Enlarged structure diagram at position A in

[0027] Figure 5 For Figure 3 Enlarged structure diagram at position B in

[0028] Figure 6 Schematic three-dimensional enlarged structure diagram of the filtering mechanism;

[0029] Figure 7 Schematic three-dimensional enlarged structure diagram of the material guiding unit;

[0030] Figure 8 Schematic three-dimensional enlarged structure diagram of the cooperation between the air guiding unit and the circular baffle;

[0031] Figure 9 Schematic three-dimensional enlarged structure diagram of the cooperation between the second tank body, the water injection pipe and the drain pipe;

[0032] Figure 10 Schematic three-dimensional enlarged structure diagram of the pre-fixing unit;

[0033] Figure 11 Schematic three-dimensional enlarged structure diagram of the supplementary component;

[0034] Figure 12 Schematic three-dimensional enlarged structure diagram of the gasket.

[0035] [Reference numerals]

[0036] 1. Rotary kiln body; 2. Clamp; 3. Filter mechanism; 4. Filter box; 5. Collar; 6. First trough; 7. Circular baffle; 8. Second trough; 9. Installation cylinder; 10. Third trough; 11. Pre-fixing unit; 111. First fixing ring; 112. First elastic sheet; 12. Feeding unit; 121. Installation disc; 122. Feeding hole; 123. First air pipe; 124. Annular filter screen; 125. Annular clamping plate; 13. Air guiding unit; 131. Perforated plate; 132. Second air pipe; 14. Limit groove; 15. Arc section; 16. Sealing unit; 161. Supplementary component; 1611. Second fixing ring; 1612. Second elastic sheet; 162. Sealing gasket; 1621. First annular section; 1622. Second annular section; 18. Water injection pipe; 19. Drain pipe; 20. Exhaust pipe; 21. Feed pipe; 22. Discharge pipe; 23. Jack plate; 24. Handle.

[0037] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications still fall within the scope of the appended claims. Detailed implementation manners

[0038] The following describes in detail a flue gas purification treatment system for an energy-saving rotary kiln provided by the present invention in combination with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0039] It should be pointed out that the embodiments indicated by "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, it should be within the knowledge of those skilled in the relevant art to implement such features, structures, or characteristics in combination with other embodiments whether or not they are explicitly described.

[0040] Generally, terms can be understood at least in part from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or property in the singular sense, or can be used to describe a combination of features, structures, or properties in the plural sense. Additionally, the term "based on" can be understood to not necessarily be intended to convey a set of exclusive factors, but rather can alternatively, depending at least in part on the context, allow for the existence of other factors that are not necessarily explicitly described.

[0041] It can be understood that the meanings of "on", "above", and "over" in the present disclosure should be construed in the broadest manner such that "on" not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but can also include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0042] In addition, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. can be used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device can be oriented in other ways, and the spatial relative descriptive terms used herein can be correspondingly interpreted similarly.

[0043] As Figures 1 - 12 shown, an embodiment of the present invention provides a flue gas purification treatment system for an energy-saving rotary kiln, including: a rotary kiln body 1, the rotary kiln body 1 includes a kiln head, a kiln body, a kiln tail, a rotary kiln support frame, a preheating tower, a cooler, and a conveyor belt that are connected. The kiln head is used for discharging materials, and its main components include a maintenance port, a coal injection nozzle, a trolley, an observation hole, etc. The kiln body is used for firing. The kiln tail part is also an important part of the rotary kiln. Its shape at the feeding end is similar to a lid of a rotary kiln and mainly undertakes the functions of feeding and sealing. The support frame of the rotary kiln mainly fixes the rotary kiln equipment. The preheating tower, also called a preheater, is a device that preliminarily heats materials by the waste heat of the tail gas discharged from the rotary kiln before the materials enter the rotary kiln, and is mostly of a vertical structure. The cooler is opposite to the preheater and is a device for rapidly cooling the materials after they are burned in the rotary kiln. The conveyor belt is a material conveying device of the rotary kiln, which is an existing technical means. A clamp 2 is fixedly sleeved on the rotary kiln body 1; a filtering mechanism 3 for flue gas treatment is installed at one end of the rotary kiln body 1 for discharging flue gas, and the filtering mechanism 3 is connected to the clamp 2.

[0044] As Figures 3 - 6 、 Figures 7 - 9As shown, the filtering mechanism 3 includes a connected filtering box 4, a collar 5, and a mounting cylinder 9. The collar 5 and the mounting cylinder 9 are arranged inside the filtering box 4. The mounting cylinder 9 is funnel-shaped, with the outer diameter of its opening being larger than the inner diameter. The outer side wall of the mounting cylinder 9 is provided with an external thread. The collar 5 is sleeved on one end of the rotary kiln body 1, and an arc section 15 is provided on the collar 5. A first groove 6 is formed at the connection between the filtering box 4 and the collar 5 for facilitating the storage of impurities such as particles and dust in the flue gas. A circular baffle 7 is fixedly connected inside the filtering box 4. The circular baffle 7 and the inner cavity of the filtering box 4 form a second groove 8 and a third groove 10. The third groove 10 is communicated with the first groove 6. A limiting groove 14 is provided on the filtering box 4, and a material guiding unit 12 is installed in the limiting groove 14. The material guiding unit 12 includes a connected mounting disc 121, a plurality of first air pipes 123, an annular filter screen 124, and an annular clamping plate 125. A plurality of feeding holes 122 are formed on the mounting disc 121, and the feeding holes 122 are communicated with the first air pipes 123. A plurality of air inlet holes are formed on the annular filter screen 124, and the air inlet holes are connected to the first air pipes 123. The mounting disc 121 is screwed onto the mounting cylinder 9 through an internal thread, and the annular clamping plate 125 is clamped in the limiting groove 14. A gas guiding unit 13 is provided on the circular baffle 7. The gas guiding unit 13 includes a connected perforated plate 131 and a second air pipe 132. The second air pipe 132 is installed in the first through hole formed on the circular baffle 7. The circular baffle 7 is located in the second groove 8, and the bottom opening of the circular baffle 7 is lower than the water level of the purification liquid. A water injection pipe 18, a water discharge pipe 19, an exhaust pipe 20, a feeding pipe 21, a discharge pipe 22, and a discharge hole are fixedly connected to the filtering box 4. The discharge hole is a conventional technical means and is not shown in the figure. Among them, the water injection pipe 18, the water discharge pipe 19, and the exhaust pipe 20 are communicated with the second groove 8, the feeding pipe 21 and the discharge pipe 22 are communicated with the third groove 10, and the discharge hole is communicated with the first groove 6. Sealing covers are installed on the water injection pipe 18, the water discharge pipe 19, the exhaust pipe 20, the feeding pipe 21, and the discharge pipe 22, and a sealing plug is inserted into the discharge hole. A pair of socket plates 23 and a pair of handles 24 are fixedly connected to the outer side wall of the filtering box 4. The pair of socket plates 23 are symmetrically arranged, and the pair of handles 24 are symmetrically arranged. The socket plates 23 are connected to the clamp 2. The clamp 2 includes a fixed ring and two pin rings. The socket plates 23 correspond to the pin rings. An insertion pin is provided above the socket plate 23, and the bottom end of the insertion pin penetrates through the socket plate 23 and the pin ring.

[0045] Through the cooperation of the filter box 4, the collar 5, the installation cylinder 9 and the material guiding unit 12, during use, when the flue gas passes through the feeding hole 122, the first air pipe 123 and the air inlet hole and enters the first tank body 6, the flue gas entering the first tank body 6 will be filtered by the annular filter screen 124, and the filtered flue gas will enter the third tank body 10, so that impurities such as particles and dust in the flue gas are filtered. When it is necessary to clean the impurities, by pulling out the sealing plug, the dust can be cleaned out from the discharge hole, so that impurities such as particles and dust in the flue gas are removed from the flue gas, avoiding the pollution of the surrounding environment by particles, dust and other impurities, and also avoiding diseases such as pneumoconiosis of the staff.

[0046] Through the cooperation of the feeding pipe 21, the discharging pipe 22 and the third tank body 10, during use, activated carbon can be placed in the third tank body 10 through the feeding pipe 21 first. When the filtered flue gas enters the third tank body 10, it will come into contact with the activated carbon, and the activated carbon will filter the flue gas. When it is necessary to replace the activated carbon, the sealing cover on the discharging pipe 22 can be removed so that the activated carbon to be replaced can be removed through the discharging pipe 22, thus facilitating the replacement, and most of the toxic substances in the flue gas are purified by the activated carbon.

[0047] Through the arrangement of the air guiding unit 13 and the second tank body 8, the gas purified by the activated carbon will enter the second tank body 8 through the perforated plate 131 and the second air pipe 132, and is purified by the purification liquid in the second tank body 8. The purified clean gas will be discharged through the exhaust pipe 20. When it is necessary to change the water, by removing the sealing cover on the drain pipe 19, the purification liquid is discharged, and then it can be injected through the water injection pipe 18, so that the remaining toxic substances and trace impurities are purified, further protecting the surrounding environment and avoiding damage to the bodies of the operators.

[0048] Such as Figures 3 - 5 、 Figures 10 - 12As shown in the figure, a pre-fixing unit 11 is arranged inside the collar 5. The pre-fixing unit 11 includes a connected first fixing ring 111 and a plurality of first elastic pieces 112. The first fixing ring 111 and the first elastic pieces 112 are of an integral structure. The side wall of the first elastic piece 112 abuts against the outer side wall of the rotary kiln body 1. A sealing unit 16 is installed inside the arc section 15. The sealing unit 16 includes a connected supplementary component 161 and a sealing gasket 162. The supplementary component 161 is fixedly connected to the arc section 15. The sealing gasket 162 abuts against the inner side wall of the rotary kiln body 1. The sealing gasket 162 includes a connected first annular section 1621 and a second annular section 1622. The first annular section 1621 and the second annular section 1622 are of an integral structure. An installation groove is formed between the first annular section 1621 and the second annular section 1622. The outer side wall of the second annular section 1622 abuts against the inner side wall of the rotary kiln body 1. The supplementary component 161 includes a connected second fixing ring 1611 and a plurality of second elastic pieces 1612. The second fixing ring 1611 and the second elastic pieces 1612 are of an integral structure. The second fixing ring 1611 is fixedly connected to the first annular section 1621. The second elastic pieces 1612 are inserted into the second annular section 1622.

[0049] By arranging the sealing unit 16, during use, the first annular section 1621 will always keep in contact with the inner wall of the rotary kiln body 1 through the second elastic pieces 1612, avoiding the leakage of flue gas between the filter box 4 and the rotary kiln body 1.

[0050] By arranging the pre-fixing unit 11, during installation, when the collar 5 is sleeved on the rotary kiln body 1, the first elastic pieces 112 will contact the outer wall of the rotary kiln body 1, enabling the pre-fixing of the filtering mechanism 3 and the rotary kiln body 1. Further pushing the filter box 4 will make the jack plate 23 contact the pin ring. After inserting the pin, the filtering mechanism 3 will be fixed to the clamp 2, thus facilitating the installation and disassembly of the filtering mechanism 3, avoiding complex installation operation processes, and being more conducive to the installation operation of the operator.

[0051] In the technical solution provided by the present invention, through the cooperative arrangement of the filter box 4, the collar 5, the installation cylinder 9 and the feeding unit 12, during use, when the flue gas passes through the feeding hole 122, the first air pipe 123 and the air inlet hole and enters the first tank body 6, the flue gas entering the first tank body 6 will be filtered by the annular filter screen 124. The filtered flue gas will enter the third tank body 10, so that impurities such as particles and dust in the flue gas are filtered. When it is necessary to clean the impurities, by pulling out the sealing plug, the dust can be cleaned out from the discharge hole, thus removing the particles, dust and other impurities from the flue gas, avoiding the pollution of the surrounding environment by the particles, dust and other impurities, and also avoiding diseases such as pneumoconiosis of the staff.

[0052] Through the cooperative setting of the feed pipe 21, the discharge pipe 22, and the third tank body 10, during use, activated carbon can be placed into the third tank body 10 through the feed pipe 21 first. When the filtered flue gas enters the third tank body 10, it will come into contact with the activated carbon, and the activated carbon will filter the flue gas. When the activated carbon needs to be replaced, the sealing cover on the discharge pipe 22 can be removed so that the activated carbon to be replaced can be removed through the discharge pipe 22, thus facilitating the replacement. As a result, most of the toxic substances in the flue gas are purified by the activated carbon.

[0053] Through the setting of the air guiding unit 13 and the second tank body 8, the gas purified by the activated carbon will enter the second tank body 8 through the perforated plate 131 and the second air pipe 132, and be purified by the purification liquid in the second tank body 8. The purified clean gas will be discharged through the exhaust pipe 20. When water needs to be changed, the sealing cover on the drain pipe 19 is removed to make the purification liquid drain out, and then it can be injected through the water injection pipe 18. Thus, the remaining toxic substances and trace impurities are purified, further protecting the surrounding environment and avoiding damage to the bodies of the operators.

[0054] By setting the sealing unit 16, during use, the first annular section 1621 will always keep in contact with the inner wall of the rotary kiln body 1 through the second elastic piece 1612, preventing the flue gas from leaking out between the filter box 4 and the rotary kiln body 1.

[0055] By setting the pre-fixing unit 11, during installation, while the collar 5 is sleeved on the rotary kiln body 1, the first elastic piece 112 will come into contact with the outer wall of the rotary kiln body 1, enabling the pre-fixing of the filtering mechanism 3 and the rotary kiln body 1. Further pushing the filter box 4 will make the jack plate 23 come into contact with the pin ring, and then inserting the pin will fix the filtering mechanism 3 and the clamp 2. Thus, the filtering mechanism 3 is convenient for installation and disassembly, avoiding a complex installation operation process and being more conducive to the installation operation by the operators.

[0056] The present invention covers any substitutions, modifications, equivalent methods, and solutions made within the essence and scope of the present invention. To enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention even without these detailed descriptions. Additionally, to avoid unnecessary confusion to the essence of the present invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0057] Those of ordinary skill in the art can understand that all or part of the steps in implementing the above-described embodiment methods can be completed by instructing relevant hardware through a program, and this program can be stored in a computer-readable storage medium, such as: ROM / RAM, magnetic disk, optical disc, etc.

[0058] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A flue gas purification and treatment system for an energy-saving rotary kiln, characterized in that, Comprising: The rotary kiln body, on which a clamp is fixedly sleeved; A filtering mechanism for flue gas treatment, which is connected to the clamp; The filtering mechanism includes a connected filtering box, a collar, and an installation cylinder. The collar and the installation cylinder are arranged inside the filtering box. The collar is sleeved on one end of the rotary kiln body. A pre-fixing unit is arranged inside the collar. An arc section is arranged on the collar, and a sealing unit is installed inside the arc section. A first groove body is formed at the connection between the filtering box and the collar. A circular baffle is fixedly connected inside the filtering box. The circular baffle and the inner cavity of the filtering box form a second groove body and a third groove body. The third groove body is communicated with the first groove body. A limiting groove is arranged on the filtering box, and a material guiding unit is installed inside the limiting groove. An air guiding unit is arranged on the circular baffle; The material guiding unit includes a connected installation disc, a plurality of first air pipes, an annular filter screen, and an annular clamping plate. A plurality of material inlet holes are opened on the installation disc, and the material inlet holes are communicated with the first air pipes. A plurality of air inlet holes are opened on the annular filter screen, and the air inlet holes are connected to the first air pipes. The installation disc is screwed onto the installation cylinder through internal threads. The annular clamping plate is clamped inside the limiting groove. Flue gas will enter the first groove body through the material inlet holes, the first air pipes, and the air inlet holes. The flue gas entering the first groove body will be filtered by the annular filter screen, and the filtered flue gas will enter the third groove body.

2. The flue gas purification treatment system of the energy-saving rotary kiln according to claim 1, characterized in that The installation cylinder is arranged in a funnel shape, and the outer diameter of the installation cylinder is larger than the inner diameter.

3. The flue gas purification treatment system of the energy-saving rotary kiln according to claim 1, characterized in that, The pre-fixing unit includes a connected first fixing ring and a plurality of first elastic pieces. The first fixing ring and the first elastic pieces are of an integral structure, and the side wall of the first elastic piece abuts against the outer side wall of the rotary kiln body.

4. The flue gas purification treatment system of the energy-saving rotary kiln according to claim 1, characterized in that The sealing unit includes a connected supplementary component and a sealing gasket. The supplementary component is fixedly connected to the arc section, and the sealing gasket abuts against the inner side wall of the rotary kiln body.

5. The flue gas purification treatment system of the energy-saving rotary kiln according to claim 4, characterized in that The sealing gasket includes a connected first annular section and a second annular section. The first annular section and the second annular section are of an integral structure. An installation groove is formed between the first annular section and the second annular section. The outer side wall of the second annular section abuts against the inner side wall of the rotary kiln body. The supplementary component includes a connected second fixing ring and a plurality of second elastic pieces. The second fixing ring and the second elastic pieces are of an integral structure. The second fixing ring is fixedly connected to the first annular section, and the second elastic pieces are inserted into the second annular section.

6. The flue gas purification treatment system of the energy-saving rotary kiln according to claim 1, characterized in that, The air guiding unit includes a connected perforated plate and a second air pipe. The second air pipe is installed in a first through hole opened on the circular baffle. The circular baffle is located inside the second groove body.

7. The flue gas purification treatment system of the energy-saving rotary kiln according to claim 1, characterized in that, A water injection pipe, a water discharge pipe, an exhaust pipe, a feed pipe, and a discharge pipe are fixedly connected to the filtering box. Among them, the water injection pipe, the water discharge pipe, and the exhaust pipe are communicated with the second groove body. The feed pipe and the discharge pipe are communicated with the third groove body. Sealing covers are installed on the water injection pipe, the water discharge pipe, the exhaust pipe, the feed pipe, and the discharge pipe.

8. The flue gas purification treatment system of the energy-saving rotary kiln according to claim 1, characterized in that, A pair of jack plates are fixedly connected to the outer side wall of the filter box, and the pair of jack plates are symmetrically arranged. The clamp includes a fixed ring and two pin rings, the jack plates correspond to the pin rings, and a pin is arranged above the jack plates, and the bottom end of the pin penetrates through the jack plates and the pin rings.

9. The flue gas purification treatment system of the energy-saving rotary kiln according to claim 1, characterized in that, A pair of handles are fixedly connected to the outer side wall of the filter box, and the pair of handles are symmetrically arranged.

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