A low-energy consumption preheating device for chemical raw materials of a chemical furnace

Abstract

The present invention discloses a low-energy preheating device for chemical raw materials of a chemical furnace, which relates to the technical field of raw material preheating and mixing, comprising: a mixing furnace, which is arranged on the top of the ground, and is used to stir and mix chemical raw materials; an exhaust gas box, which is arranged on the top of the mixing furnace, and is used to preheat chemical raw materials; a discharge pipe, which is fixedly installed on the rear side of the exhaust gas box; a connecting pipe one, which is fixedly installed on the left side of the exhaust gas box; a connecting pipe two, which is fixedly installed on the left side of the mixing furnace; a mixing frame that moves back and forth to stir the chemical raw materials inside the exhaust gas box, thereby improving the contact area and mixing efficiency between the reaction gas and the chemical raw materials. The back and forth movement of the mixing frame can effectively stir the chemical raw materials inside the exhaust gas box, and promote sufficient contact and mixing between the reaction gas and the raw materials.

Description

Technical Field

[0001] The invention relates to the technical field of raw material preheating and mixing, in particular to a low-energy consumption preheating device for chemical raw materials of a chemical furnace. Background Art

[0002] The low-energy preheating device for chemical raw materials in chemical furnaces usually consists of a mixing furnace, an exhaust gas box, a preheating pipe and a driving device.

[0003] Patent publication number CN219494859U relates to a preheating device for low-energy, comprehensive clinker burning. Its technical solution includes a base, a partition, and an outer shell. A fixing frame and an outer shell are welded to the top surface of the base. A ceramic heating tube is fitted onto the top surface of the inner wall of the outer shell, and a fixed tube is embedded and fixed to the top surface of the outer shell. A fan is installed in the fixed tube, and an air intake pipe is embedded and fixed to the fixed tube. A panel is welded to the inner shell, and a conveyor belt is provided within the panel. A first coil is fitted onto the top surface of the partition. A water tank is fixed to the rear end surface of the outer shell, and a water pump is mounted on the bottom end surface of the inner wall of the water tank. A second connecting pipe is installed on the water pump, and a second coil is embedded and fixed to the end of the second connecting pipe facing away from the water pump. This patent meets the requirements for material preheating, enables rapid processing and production, and facilitates the recovery and utilization of heat from production and processing.

[0004] In the above patent, the material preheating is met, and rapid processing and production are possible, and the heat generated in production and processing can be recovered and utilized conveniently. However, it is difficult to increase the contact area and mixing efficiency between the reaction gas and the chemical raw materials. Due to the low contact area and mixing efficiency, the heat energy of the reaction gas will be greatly lost during the transfer process, thereby requiring a longer time and reaction gas to achieve the predetermined preheating effect. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a low-energy consumption preheating device for chemical raw materials of a chemical furnace, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A low-energy preheating device for chemical raw materials of a chemical furnace, comprising: a mixing furnace, the mixing furnace being arranged on the top of the ground, the mixing furnace being used to stir and mix the chemical raw materials; an exhaust gas box, the exhaust gas box being arranged on the top of the mixing furnace, the exhaust gas box being used to preheat the chemical raw materials; a discharge pipe, the discharge pipe being fixedly mounted on the rear side of the exhaust gas box; a connecting pipe 1, the connecting pipe 1 being fixedly mounted on the left side of the exhaust gas box; a connecting pipe 2, the connecting pipe 2 being fixedly mounted on the left side of the mixing furnace; a preheating pipe, one end of the preheating pipe being slidably mounted on the inner wall of the connecting pipe 1, and the other end of the preheating pipe being slidably mounted on the inner wall of the connecting pipe 2; a valve, the valve being arranged on the circumferential surface of the preheating pipe; a servo motor, the servo motor being fixedly mounted on the left side of the exhaust gas box; a screw rod, the screw rod being fixedly mounted on the output end of the servo motor; a mixing rack, the mixing rack being slidably mounted on the inner wall of the exhaust gas box, the mixing rack being threadedly connected to the screw rod, the mixing rack moving back and forth to stir the chemical raw materials inside the exhaust gas box, thereby improving the contact area and mixing efficiency between the reaction gas and the chemical raw materials.

[0007] According to the above technical solution, a rotating rod is rotated and penetrates the bottom of the exhaust gas box, a feeding plate is fixedly installed on the circumferential surface of the rotating rod, a feeding hole is opened on the top of the feeding plate, a groove block is fixedly installed on the circumferential surface of the rotating rod, a rack is fixedly installed on the top of the inner wall of the mixing frame, and a discharge hole is opened at the bottom of the exhaust gas box. The rotation and reset of the rotating rod drives the feeding plate to rotate and reset, and the rotation and reset of the feeding plate blocks the discharge hole.

[0008] According to the above technical solution, a torsion spring is arranged between the rotating rod and the waste gas box. The rotating rod rotates to squeeze the torsion spring. The torsion spring is deformed and stores force due to the squeezing of the rotating rod. After the groove block is out of contact with the rack, the torsion spring can drive the rotating rod to reset. The feeding plate is in conflict with the bottom of the waste gas box, the bottom of the mixing rack is set as an inclined plane, and granular chemical raw materials are arranged inside the waste gas box.

[0009] According to the above technical solution, the inner wall of the waste gas box is provided with a guide component for preventing excessive preheating of chemical raw materials, and the inner wall of the connecting pipe is provided with a protective component. The guide component includes a porous plate, a square plate, an insulation plate, a guide pipe and an insulation rod. The movement and reset of the insulation plate drives the guide pipe to move and reset, and the guide pipe moves back and forth to guide the reaction gas entering the waste gas box. The porous plate is fixedly installed on the inner wall of the waste gas box, and the insulation rod slides through the left and right walls of the porous plate. The square plate is fixedly installed on the left side of the insulation rod, the insulation plate is fixedly installed on the right side of the insulation rod, and the guide pipe is fixedly installed on the right side of the insulation plate.

[0010] According to the above technical solution, the right side of the heat insulation plate is set to an arc surface, the heat insulation plate is in contact with the inner wall of the exhaust gas box, and a reset spring is set between the porous plate and the square plate. The square plate moves toward the direction close to the preheating tube to pull the reset spring. The reset spring is deformed and accumulates force due to the pulling of the square plate. When the heat insulation plate moves and resets, the reset spring can drive the heat insulation plate to vibrate, and the vibration of the heat insulation plate drives the guide tube to vibrate. The vibration of the heat insulation plate and the guide tube helps to disturb the static airflow.

[0011] According to the above technical solution, the protection component includes a connecting rod, a connecting plate, a connecting groove and a connecting spring. The preheating tube is limited by the connecting plate and cannot move horizontally. The connecting rod is fixedly installed on an inner wall of the connecting tube, and the connecting plate is slidably installed on the circumferential surface of the connecting rod. The connecting groove is opened on the inner wall of the preheating tube, and the connecting spring is arranged between the connecting rod and the connecting plate.

[0012] According to the above technical solution, a strip rod is fixedly installed at the bottom of the exhaust box, and the strip rod is elastic. A protective rod is fixedly installed on the right side of the valve. The connecting plate moves upward to pull the connecting spring. The connecting spring is deformed and accumulates force due to the pulling of the connecting plate. After the connecting plate is out of contact with the square plate, the connecting plate can be driven to reset through the connecting spring.

[0013] According to the above technical solution, the protective rod is in contact with the strip rod, the bottom of the connecting plate is set as a slope, the strip rod gradually deforms so that the protective rod moves slowly to the left, and the protective rod moves slowly to the left to protect the preheating tube from impact, and the connecting plate is in contact with the square plate.

[0014] The present invention provides a low-energy consumption preheating device for chemical raw materials in a chemical furnace. It has the following beneficial effects:

[0015] (1) The chemical raw materials of the chemical furnace are preheated with a low energy consumption device. The chemical raw materials in the waste gas box are stirred by the reciprocating movement of the mixing rack, thereby increasing the contact area and mixing efficiency between the reaction gas and the chemical raw materials. The reciprocating movement of the mixing rack can effectively stir the chemical raw materials in the waste gas box, promote the full contact and mixing between the reaction gas and the raw materials, thereby increasing the preheating efficiency of the chemical raw materials and shortening the time required for preheating the chemical raw materials. The feeding hole and the discharge hole are intermittently aligned to intermittently feed the chemical raw materials in the waste gas box into the mixing furnace. The intermittent feeding helps to control the time and temperature during the preheating process, thereby improving the preheating efficiency of the chemical raw materials.

[0016] (2) The chemical raw materials of the chemical furnace are preheated with low energy consumption. The reaction gas entering the exhaust box is guided by the reciprocating motion of the guide pipe. The reciprocating motion of the guide pipe makes the reaction gas flow more evenly, avoiding the phenomenon of local temperature of the chemical raw materials being too high or too low, making the preheating process more uniform.

[0017] (3) The chemical raw materials of the chemical furnace are preheated with low energy consumption. The shaking of the heat insulation plate and the guide tube helps to disturb the dead zone airflow, thereby promoting the uniform distribution of the reaction gas. The shaking of the heat insulation plate and the guide tube can increase the contact area between the gas and the raw materials, thereby further improving the heat transfer efficiency of the reaction gas.

[0018] (4) The chemical raw materials of the chemical furnace use a low-energy preheating device, which moves upward through the connecting plate to contact the inner wall of the connecting groove and limit the preheating tube. At the beginning of preheating, the preheating tube usually faces expansion or contraction caused by temperature changes. By limiting the preheating tube, its position can be fixed to avoid gas leakage caused by temperature changes in the early stage of preheating, further optimizing the heat exchange process.

[0019] (5) The chemical furnace uses a low-energy preheating device for chemical raw materials. The strip rod gradually deforms to allow the protective rod to slowly move to the left. The protective rod slowly moves to the left to protect the preheating tube from impact. Through slow displacement, the protective rod can gradually absorb and disperse the impact force, thereby preventing the preheating tube from being severely impacted and deformed due to excessive reaction of the chemical raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of a half-section structure of the exhaust gas box of the present invention;

[0022] Figure 3 This is a schematic diagram of a half-section structure of a mixing furnace according to the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the exhaust box of the present invention;

[0024] Figure 5 This is a schematic diagram of the half-section structure of the preheating tube of the present invention;

[0025] Figure 6 For the present invention Figure 5 A schematic diagram of the structure of part A in the middle;

[0026] Figure 7 It is a schematic diagram of half cross-sectional structure of the connecting pipe of the present invention.

[0027] In the figure: 1. Mixing furnace; 2. Exhaust gas box; 3. Discharge pipe; 4. Connecting pipe 1; 5. Connecting pipe 2; 6. Preheating pipe; 7. Valve; 8. Servo motor; 9. Screw; 10. Mixing rack; 11. Rotating rod; 12. Feeding plate; 13. Feeding hole; 14. Groove block; 15. Rack; 16. Feeding hole; 171. Perforated plate; 172. Square plate; 173. Insulation plate; 174. Guide pipe; 175. Insulation rod; 176. Return spring; 181. Connecting rod; 182. Connecting plate; 183. Connecting groove; 184. Protective rod; 185. Strip rod; 186. Connecting spring. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-6 One embodiment of the present invention is: a low-energy preheating device for chemical raw materials of a chemical furnace, comprising: a mixing furnace 1, the mixing furnace 1 is arranged on the top of the ground, and the mixing furnace 1 is used to stir and mix the chemical raw materials; an exhaust gas box 2, the exhaust gas box 2 is arranged on the top of the mixing furnace 1, and the exhaust gas box 2 is used to preheat the chemical raw materials; a discharge pipe 3, the discharge pipe 3 is fixedly installed on the rear side of the exhaust gas box 2; a connecting pipe 1 4, the connecting pipe 1 4 is fixedly installed on the left side of the exhaust gas box 2; a connecting pipe 2 5, the connecting pipe 2 5 is fixedly installed on the left side of the mixing furnace 1; a preheating pipe 6, one end of the preheating pipe 6 is slidably installed on the connecting pipe The inner wall of tube 1 4, the other end of the preheating tube 6 is slidably installed on the inner wall of the connecting tube 2 5; valve 7, valve 7 is arranged on the circumferential surface of the preheating tube 6; servo motor 8, servo motor 8 is fixedly installed on the left side of the exhaust box 2; screw rod 9, screw rod 9 is fixedly installed on the output end of servo motor 8; mixing rack 10, mixing rack 10 is slidably installed on the inner wall of the exhaust box 2, and the mixing rack 10 is threadedly connected to the screw rod 9. The reciprocating motion of the mixing rack 10 can effectively stir the chemical raw materials inside the exhaust box 2, promote the full contact and mixing between the reaction gas and the raw materials, and thereby improve the preheating efficiency of the chemical raw materials.

[0030] A rotating rod 11 is rotated and penetrates the bottom of the waste gas box 2. A feeding plate 12 is fixedly installed on the circumferential surface of the rotating rod 11. A feeding hole 13 is provided on the top of the feeding plate 12. A groove block 14 is fixedly installed on the circumferential surface of the rotating rod 11. A rack 15 is fixedly installed on the top of the inner wall of the mixing frame 10. A discharge hole 16 is provided at the bottom of the waste gas box 2. The rotating rod 11 rotates and resets to drive the feeding plate 12 to rotate and reset. The feeding plate 12 rotates and resets to block the discharge hole 16. Intermittent feeding helps to control the time and temperature during the preheating process, thereby improving the preheating efficiency of chemical raw materials.

[0031] A torsion spring is arranged between the rotating rod 11 and the waste gas box 2. The rotating rod 11 rotates to squeeze the torsion spring. The torsion spring is deformed and stores force due to the squeezing of the rotating rod 11. After the groove block 14 is out of contact with the rack 15, the torsion spring can drive the rotating rod 11 to reset. The feeding plate 12 conflicts with the bottom of the waste gas box 2. The bottom of the mixing rack 10 is set as an inclined surface. Granular chemical raw materials are arranged inside the waste gas box 2.

[0032] When this embodiment is working: the chemical raw materials to be preheated are thrown into the exhaust box 2 through the discharge pipe 3, and the valve 7 is started at the same time so that the reaction gas inside the mixing furnace 1 enters the exhaust box 2 through the connecting pipe 2 5, the preheating pipe 6 and the connecting pipe 1 4. The reaction gas entering the exhaust box 2 preheats the chemical raw materials inside the exhaust box 2, and at the same time, the servo motor 8 is started to drive the screw rod 9 to rotate, and the rotation of the screw rod 9 drives the mixing frame 10 to move to the left. After the mixing frame 10 moves to the left to the specified position, the servo motor 8 operates to drive the screw rod 9 to rotate in the opposite direction, and the screw rod 9 rotates in the opposite direction to drive the mixing frame 10 to move to the right and reset. The mixing frame 10 moves back and forth to stir the chemical raw materials inside the exhaust box 2, thereby increasing the contact area and mixing efficiency between the reaction gas and the chemical raw materials, and the contact area between the reaction gas and the chemical raw materials is increased, thereby improving the preheating efficiency of the chemical raw materials, and the mixing frame 10 moves to the left to drive The rack 15 moves to the left, and the rack 15 moves to the left to contact the groove block 14 and squeeze the groove block 14. The groove block 14 is squeezed by the rack 15 and rotates. The groove block 14 rotates and drives the rotating rod 11 to rotate. The rotation of the rotating rod 11 drives the feeding plate 12 to rotate. The feeding plate 12 rotates so that the feeding hole 13 is aligned with the discharge hole 16. The mixing rack 10 moves to the right and resets. The mixing rack 10 moves to the right and drives the rack 15 to move to the right and reset. The rack 15 moves to the right and resets to break away from the contact with the groove block 14. After the groove block 14 is out of contact with the rack 15, the rotating rod 11 rotates in the opposite direction and resets under the elastic force of the torsion spring. The rotating rod 11 rotates and resets to drive the feeding plate 12 to rotate and reset. The feeding plate 12 rotates and resets to block the discharge hole 16. The feeding hole 13 is intermittently aligned with the discharge hole 16, and then the chemical raw materials inside the exhaust box 2 are intermittently fed into the mixing furnace 1.

[0033] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, the inner wall of the exhaust box 2 is provided with a guide component for preventing excessive preheating of the chemical raw materials, and the inner wall of the connecting pipe 4 is provided with a protection component. The guide component includes a porous plate 171, a square plate 172, a heat insulation plate 173, a guide pipe 174 and a heat insulation rod 175. The porous plate 171 is fixedly installed on the inner wall of the exhaust box 2, the heat insulation rod 175 slides through the left and right walls of the porous plate 171, the square plate 172 is fixedly installed on the left side of the heat insulation rod 175, the heat insulation plate 173 is fixedly installed on the right side of the heat insulation rod 175, and the guide pipe 174 is fixedly installed on the right side of the heat insulation plate 173. The reciprocating motion of the guide pipe 174 makes the reaction gas flow more evenly, avoids the phenomenon of local temperature of the chemical raw materials being too high or too low, and makes the preheating process more uniform.

[0034] The right side of the heat insulation plate 173 is set to an arc surface, and the heat insulation plate 173 is in conflict with the inner wall of the exhaust box 2. A return spring 176 is set between the porous plate 171 and the square plate 172. The square plate 172 moves in the direction close to the preheating tube 6 to pull the return spring 176. The return spring 176 is deformed and accumulates force due to the pulling of the square plate 172. When the heat insulation plate 173 moves and resets, the return spring 176 can drive the heat insulation plate 173 to vibrate, and the vibration of the heat insulation plate 173 drives the guide tube 174 to vibrate. The vibration of the heat insulation plate 173 and the guide tube 174 helps to disturb the static airflow. The vibration of the heat insulation plate 173 and the guide tube 174 can disturb the dead zone airflow, thereby further improving the heat transfer efficiency of the reaction gas.

[0035] The protection component includes a connecting rod 181, a connecting plate 182, a connecting groove 183 and a connecting spring 186. The connecting rod 181 is fixedly installed on the inner wall of the connecting tube 4, the connecting plate 182 is slidably installed on the circumferential surface of the connecting rod 181, the connecting groove 183 is opened on the inner wall of the preheating tube 6, and the connecting spring 186 is arranged between the connecting rod 181 and the connecting plate 182. By limiting the preheating tube 6, its position can be fixed to avoid gas leakage caused by temperature changes in the early stage of preheating, thereby further optimizing the heat exchange process.

[0036] A strip rod 185 is fixedly installed at the bottom of the exhaust box 2, and the strip rod 185 is elastic. A protective rod 184 is fixedly installed on the right side of the valve 7. The connecting plate 182 moves upward to pull the connecting spring 186. The connecting spring 186 is deformed and accumulates force due to the pulling of the connecting plate 182. After the connecting plate 182 breaks away from contact with the square plate 172, the connecting plate 182 can be driven to reset through the connecting spring 186.

[0037] The protective rod 184 contacts the strip rod 185, and the bottom of the connecting plate 182 is set as an inclined surface. The strip rod 185 gradually deforms, causing the protective rod 184 to slowly move to the left. The protective rod 184 slowly moves to the left to protect the preheating tube 6 from impact. Through slow displacement, the protective rod 184 can gradually absorb and disperse the impact force, thereby avoiding the preheating tube 6 from being severely impacted and deformed due to the excessive reaction of the chemical raw materials. The connecting plate 182 contacts the square plate 172.

[0038] When this embodiment is working, the rack 15 moves to the left and contacts the heat insulation plate 173 and squeezes the heat insulation plate 173. The heat insulation plate 173 is squeezed to the left by the rack 15. The heat insulation plate 173 moves to the left, driving the heat insulation rod 175 to move to the left. The heat insulation rod 175 moves to the left and drives the square plate 172 to move in the direction close to the preheating tube 6. When the rack 15 moves to the right and resets, the rack 15 moves to the right and resets to break away from the contact with the heat insulation plate 173. After the heat insulation plate 173 breaks away from the contact with the rack 15, the square plate 172 moves and resets in the direction away from the preheating tube 6 under the elastic force of the reset spring 176. The square plate 172 moves and resets in the direction away from the preheating tube 6, driving the heat insulation rod 175 to move and reset. The movement and reset of the hot rod 175 drives the heat insulation plate 173 to move and reset, and the movement and reset of the heat insulation plate 173 drives the guide tube 174 to move and reset, and the reciprocating motion of the guide tube 174 guides the reaction gas entering the exhaust box 2, and the reaction gas entering the exhaust box 2 is evenly distributed inside the exhaust box 2 by the guidance of the guide tube 174. The reaction gas entering the exhaust box 2 is evenly distributed inside the exhaust box 2 to uniformly preheat the chemical raw materials. At the same time, when the heat insulation plate 173 moves and resets, the heat insulation plate 173 vibrates under the elastic force of the reset spring 176, and the vibration of the heat insulation plate 173 drives the guide tube 174 to vibrate. The vibration of the heat insulation plate 173 and the guide tube 174 helps to disturb the static airflow, thereby promoting the uniform distribution of the reaction gas.

[0039] The square plate 172 moves toward the direction close to the preheating tube 6 and contacts the inclined surface of the bottom of the connecting plate 182 and squeezes the bottom of the connecting plate 182. The connecting plate 182 is squeezed upward by the square plate 172. The connecting plate 182 moves upward and contacts the inner wall of the connecting groove 183 and limits the preheating tube 6. The preheating tube 6 is limited by the connecting plate 182 and cannot move horizontally. When the square plate 172 moves away from the preheating tube 6, the square plate 172 moves away from the preheating tube 6 and breaks away from the contact with the connecting plate 182. After the connecting plate 182 breaks away from the contact with the square plate 172, the connecting plate 182 Under the elastic force of the connecting spring 186, it moves downward and resets, and the connecting plate 182 moves downward and resets to break away from the contact with the connecting groove 183 and releases the contact with the preheating tube 6. At the same time, if the preheating tube 6 is horizontally displaced under the impact of the reaction gas, the preheating tube 6 moves horizontally to the left, driving the protective rod 184 to move. The protective rod 184 moves to squeeze the strip rod 185. The strip rod 185 is squeezed by the protective rod 184 and gradually deformed. The strip rod 185 gradually deforms, causing the protective rod 184 to slowly move to the left. The protective rod 184 slowly moves to the left to protect the preheating tube 6 from impact.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A low energy consumption preheating device for chemical raw materials of a chemical furnace, characterized in that: include: A mixing furnace (1), the mixing furnace (1) being arranged on top of the ground, and the mixing furnace (1) being used for stirring and mixing chemical raw materials; An exhaust gas box (2), the exhaust gas box (2) being arranged on the top of the mixing furnace (1), and the exhaust gas box (2) being used to preheat the chemical raw materials; A discharge pipe (3), wherein the discharge pipe (3) is fixedly mounted on the rear side of the exhaust gas box (2); A connecting pipe (4), wherein the connecting pipe (4) is fixedly mounted on the left side of the exhaust gas box (2); Connecting pipe 2 (5), said connecting pipe 2 (5) is fixedly installed on the left side of the mixing furnace (1); A preheating tube (6), one end of the preheating tube (6) is slidably mounted on the inner wall of the connecting tube (4), and the other end of the preheating tube (6) is slidably mounted on the inner wall of the connecting tube (5); A valve (7), wherein the valve (7) is arranged on the circumferential surface of the preheating tube (6); A servo motor (8), wherein the servo motor (8) is fixedly mounted on the left side of the exhaust gas box (2); A screw rod (9), wherein the screw rod (9) is fixedly mounted on the output end of the servo motor (8); A mixing frame (10), the mixing frame (10) being slidably mounted on the inner wall of the exhaust gas box (2), the mixing frame (10) being threadedly connected to the screw rod (9); The inner wall of the exhaust gas box (2) is provided with a guide component for preventing excessive preheating of the chemical raw materials, and the inner wall of the connecting pipe (4) is provided with a protective component; A rotating rod (11) is rotatably mounted on the bottom of the exhaust gas box (2); a feeding plate (12) is fixedly mounted on the circumferential surface of the rotating rod (11); a feeding hole (13) is provided on the top of the feeding plate (12); a groove block (14) is fixedly mounted on the circumferential surface of the rotating rod (11); a rack (15) is fixedly mounted on the top of the inner wall of the mixing frame (10); and a feeding hole (16) is provided on the bottom of the exhaust gas box (2); A torsion spring is provided between the rotating rod (11) and the waste gas box (2), the feeding plate (12) contacts the bottom of the waste gas box (2), the bottom of the mixing frame (10) is provided as an inclined surface, and granular chemical raw materials are provided inside the waste gas box (2).

2. The low-energy consumption preheating device for chemical raw materials of a chemical furnace according to claim 1, characterized in that: The guide assembly comprises a porous plate (171), a square plate (172), a heat insulating plate (173), a guide pipe (174) and a heat insulating rod (175), wherein the porous plate (171) is fixedly mounted on the inner wall of the exhaust gas box (2), the heat insulating rod (175) slides through the left and right walls of the porous plate (171), the square plate (172) is fixedly mounted on the left side of the heat insulating rod (175), the heat insulating plate (173) is fixedly mounted on the right side of the heat insulating rod (175), and the guide pipe (174) is fixedly mounted on the right side of the heat insulating plate (173).

3. The low-energy consumption preheating device for chemical raw materials of a chemical furnace according to claim 2, characterized in that: The right side of the heat insulation plate (173) is configured as an arc surface, the heat insulation plate (173) contacts the inner wall of the exhaust gas box (2), and a return spring (176) is provided between the porous plate (171) and the square plate (172).

4. The low-energy consumption preheating device for chemical raw materials of a chemical furnace according to claim 3, characterized in that: The protection assembly includes a connecting rod (181), a connecting plate (182), a connecting groove (183) and a connecting spring (186), wherein the connecting rod (181) is fixedly mounted on the inner wall of the connecting tube (4), the connecting plate (182) is slidably mounted on the circumferential surface of the connecting rod (181), the connecting groove (183) is provided on the inner wall of the preheating tube (6), and the connecting spring (186) is arranged between the connecting rod (181) and the connecting plate (182).

5. The low-energy consumption preheating device for chemical raw materials of a chemical furnace according to claim 4, characterized in that: A strip rod (185) is fixedly mounted on the bottom of the exhaust box (2), and the strip rod (185) is elastic. A protection rod (184) is fixedly mounted on the right side of the valve (7).

6. The low-energy consumption preheating device for chemical raw materials of a chemical furnace according to claim 5, characterized in that: The protection rod (184) contacts the strip rod (185), the bottom of the connecting plate (182) is configured as an inclined surface, and the connecting plate (182) contacts the square plate (172).

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