Automatic preheating device for zinc ingot raw materials

Abstract

The utility model discloses an automatic zinc ingot raw material preheating device which comprises a smoke filtering mechanism and an air inlet guide pipe installed on one side of the top of the smoke filtering mechanism, a stirring conveying mechanism is arranged in the smoke filtering mechanism, a stirring motor is arranged on one side of the stirring conveying mechanism, and the smoke filtering mechanism comprises a heating bin. A spiral heating pipe is arranged on the inner wall of the heating bin, an air inlet pipe is fixedly installed on one side of the top of the spiral heating pipe, the end, away from the air inlet pipe, of the spiral heating pipe is fixedly connected with an exhaust pipe, and the air inlet guide pipe is fixedly installed on the top of the air inlet pipe. By arranging the smoke filtering mechanism, the effect of filtering smoke can be achieved through a filtering net plate, meanwhile, rotation of the filtering net plate can be achieved through a rotating disc, smoke can be conveniently filtered, fixing protrusions and fixing holes are separated by pulling a connecting frame, and therefore rapid installation and replacement of the filtering net plate are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic preheating, in particular to an automatic preheating device for zinc ingot raw materials. Background Art

[0002] Zinc oxide, commonly known as zinc white, is an oxide of zinc. It is insoluble in water but soluble in acid and strong alkali. Zinc oxide is a commonly used chemical additive. Currently, it is common to produce zinc oxide by calcining raw materials in a rotary kiln. However, the raw materials are suddenly placed in a rotary kiln for calcination. The sudden heating causes difficulty in complete combustion and uneven combustion. The high-temperature waste gas after calcination also causes energy waste. Therefore, the raw materials need to be preheated before adding them for calcination.

[0003] Announcement No. CN 213657554 U discloses an automatic preheating device for zinc ingot raw materials used in zinc oxide production. The first motor auger rotates, and the silo is installed on the shell. This structure advantageously ensures that heat energy can be prevented from leaking out and causing losses, and the material can also be sent to the rotating silo. The guide frame can disrupt the flue gas, and the inclined frame is arranged on the cylinder. This structure advantageously ensures that the flow of flue gas in the shell can be disrupted, and the heat of each part of the flue gas is transferred to the cylinder. The rotating silo is driven to rotate by the second motor. This structure advantageously ensures that the preheated raw materials can be made more uniform, and the material can also be sent to the rotary furnace. However, the patent still has the following problems in actual use:

[0004] Although the automatic preheating device for zinc ingot raw materials for zinc oxide production can disrupt the flue gas by setting a guide frame and transfer the heat of each part of the flue gas to the cylinder, the flue gas is not filtered before it is introduced, resulting in solid particles in the flue gas adhering to the cylinder wall. With the long-term use of the device, the flue gas particle impurities will accumulate to a certain extent, thereby affecting the thermal conductivity of the cylinder. At the same time, there is no relevant stirring device inside the rotating bin to stir the zinc ingot raw materials, resulting in the raw materials accumulating at the bottom of the rotating bin, affecting the preheating effect of the raw materials.

[0005] A zinc ingot raw material automatic preheating device is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide an automatic preheating device for zinc ingot raw materials to solve the problem that the automatic preheating device for zinc ingot raw materials for zinc oxide production proposed in the above-mentioned background technology can disrupt the flue gas by setting a guide frame to transfer the heat of each part of the flue gas to the cylinder, but the flue gas is not filtered before it is introduced, resulting in solid particles in the flue gas adhering to the cylinder wall. With the long-term use of the device, the flue gas particle impurities will accumulate to a certain extent, thereby affecting the heat conduction effect of the cylinder. At the same time, no relevant stirring device is set inside the rotating bin to stir the zinc ingot raw materials, resulting in the raw materials accumulating at the bottom of the rotating bin, affecting the raw material preheating effect.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic preheating device for zinc ingot raw materials, comprising a smoke filter mechanism, and an air intake guide pipe installed on one side of the top of the smoke filter mechanism;

[0008] A stirring and conveying mechanism is arranged inside the smoke filtering mechanism, and a stirring motor is arranged on one side of the stirring and conveying mechanism;

[0009] Also includes:

[0010] The smoke filtering mechanism comprises a heating chamber, the inner wall of which is provided with a spiral heating tube, and an air inlet pipe is fixedly mounted on one side of the top of the spiral heating tube;

[0011] Wherein, one end of the spiral heating tube away from the air intake pipe is fixedly connected to the exhaust pipe, and the air intake guide pipe is fixedly installed on the top of the air intake pipe;

[0012] Among them, a filter bin is symmetrically installed on the top of the air intake guide pipe, and a sealing plate is slidably connected to the inner side of the bottom of the filter bin.

[0013] Preferably, both sides of the two filter bins are rotatably connected with a rotating disk, a plurality of installation slots are provided inside the rotating disk, fixing holes are symmetrically provided at the ends of the rotating disk close to the installation slots, and a filter screen is slidably connected inside the installation slots.

[0014] Preferably, a fixing bracket is fixedly installed on the top of the filter screen plate, mounting blocks are symmetrically installed on both sides of the bottom of the fixing bracket, one side of the mounting block is fixedly connected to a fixing spring, the top of the fixing spring is fixedly connected to a fixing protrusion, and the tops of the two fixing protrusions are fixedly connected to a connecting frame.

[0015] Preferably, the stirring and conveying mechanism includes a conveying bin, a feed hopper is fixedly installed on the top side of the conveying bin, a conveying motor is fixedly installed on the side of the conveying bin close to the feed hopper, the output end of the conveying motor is fixedly connected to a conveying rotating rod, and a spiral blade is fixedly installed on the outer side of the conveying rotating rod.

[0016] Preferably, the end of the conveying rotating rod is rotatably connected to a fixed support rod, the stirring motor is fixedly installed on one side of the end of the heating bin, the output end of the stirring motor is fixedly connected to a stirring bevel gear, one side of the stirring bevel gear is meshingly connected to an engaging bevel gear disk, and the outer side of the engaging bevel gear disk is meshingly connected to a plurality of driven bevel gears.

[0017] Preferably, a fixing ring is fixedly installed inside the meshing bevel gear disk, a plurality of stirring blades are fixedly installed inside the fixing ring, one end of the stirring blade away from the fixing ring is fixedly connected to a rotating ring, and the rotating ring is rotatably connected to the heating chamber.

[0018] Preferably, the number of the filter screen plates is not less than five, the fixing protrusion is snap-connected to the rotating disk through a fixing hole, and the connecting frame is slidably connected to the fixing bracket.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: the automatic preheating device for zinc ingot raw materials can not only utilize the filter screen to achieve the effect of flue gas filtering by setting the flue gas filtering mechanism, but also utilize the rotating disk to realize the rotation of the filter screen, which is convenient for filtering the flue gas, and the fixing protrusion is separated from the fixing hole by pulling the connecting frame, so as to realize the rapid installation and replacement of the filter screen, and can not only utilize the conveying motor to realize the conveying of raw materials by setting the stirring and conveying mechanism, but also utilize the stirring motor to realize the rotation of the fixing ring and the stirring blade, so as to stir the zinc ingot raw materials inside the heating bin, and the specific contents are as follows:

[0020] 1. By setting up the flue gas filtering mechanism, not only can the filter screen plate be used to achieve the effect of flue gas filtering, but also the particulate impurities in the flue gas can be filtered by the filter screen plate, thereby preventing the impurities from accumulating inside the heating bin and affecting the heat conduction effect of the heating bin, thereby affecting the preheating effect of the zinc ingot raw material. At the same time, the filter screen plate can be rotated by the rotating disk, which is convenient for filtering the flue gas. By pulling the connecting frame, the fixed protrusion is driven to squeeze the fixed spring, so that the fixed protrusion is separated from the fixed hole, thereby realizing the rapid installation and replacement of the filter screen plate. When the filter screen plate needs to be cleaned, the filter bin can be closed by the sealing plate, and the other filter bin continues to work, thereby realizing uninterrupted flue gas filtering and improving the preheating efficiency of the zinc ingot raw material. By setting up the spiral heating tube, the heating area of ​​the heating bin can be increased, further improving the preheating efficiency of the zinc ingot raw material.

[0021] 2. By setting up the stirring and conveying mechanism, not only can the conveying motor be used to drive the conveying rotating rod and the spiral blade to rotate, and the spiral blade and the zinc ingot raw material are used for conveying, but also the stirring motor is used to drive the stirring bevel gear to rotate, and the meshing action between the stirring bevel gear, the meshing bevel gear plate and the driven bevel gear is used to realize the rotation of the fixed ring and the stirring blade, so that the zinc ingot raw material inside the heating bin can be stirred, so that the raw material can fully contact with the inner wall of the heating bin, and the raw material preheating can be more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the smoke filtering mechanism in the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the filter bin section in the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the rotating disk and the filter screen plate in the utility model in a disassembled state;

[0026] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged structure of the middle A area;

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the stirring and conveying mechanism in the utility model.

[0028] In the figure: 1. Smoke filtering mechanism; 101. Heating chamber; 102. Spiral heating tube; 103. Inlet pipe; 104. Exhaust pipe; 105. Inlet guide tube; 106. Filter chamber; 107. Sealing plate; 108. Rotating disk; 109. Mounting slot; 110. Fixing hole; 111. Filter screen plate; 112. Fixing bracket; 113. Mounting block; 114. Fixing spring; 115. Fixing protrusion; 116. Connecting frame; 2. Stirring and conveying mechanism; 201. Conveying chamber; 202. Feed hopper; 203. Conveying motor; 204. Conveying rotating rod; 205. Spiral blade; 206. Fixed support rod; 207. Stirring motor; 208. Stirring bevel gear; 209. Meshing bevel gear disc; 210. Driven bevel gear; 211. Fixing ring; 212. Stirring blade; 213. Rotating ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6The utility model provides a technical solution: an automatic preheating device for zinc ingot raw materials, comprising a smoke filter mechanism 1, and an air intake guide pipe 105 installed on one side of the top of the smoke filter mechanism 1, a stirring and conveying mechanism 2 is arranged inside the smoke filter mechanism 1, and a stirring motor 207 is arranged on one side of the stirring and conveying mechanism 2, the smoke filter mechanism 1 comprises a heating bin 101, a spiral heating tube 102 is provided on the inner wall of the heating bin 101, an air intake pipe 103 is fixedly installed on one side of the top of the spiral heating tube 102, wherein the end of the spiral heating tube 102 away from the air intake pipe 103 is fixedly connected to the exhaust pipe 104, and the air intake guide pipe 105 is fixedly installed on the air intake pipe 10 3, wherein a filter bin 106 is symmetrically installed on the top of the air intake guide pipe 105, a sealing plate 107 is slidably connected to the inner side of the bottom of the filter bin 106, a rotating disk 108 is rotatably connected to both sides of the inside of the two filter bins 106, a plurality of mounting slots 109 are opened inside the rotating disk 108, and a fixing hole 110 is symmetrically opened at the end of the rotating disk 108 near the mounting slot 109, a filter screen plate 111 is slidably connected inside the mounting slot 109, a fixing bracket 112 is fixedly installed on the top of the filter screen plate 111, and mounting blocks 113 are symmetrically installed on both sides of the bottom of the fixing bracket 112, and a fixing spring is fixedly connected to one side of the mounting block 113 114, the top of the fixing spring 114 is fixedly connected with a fixing protrusion 115, the tops of the two fixing protrusions 115 are fixedly connected with a connecting frame 116, the number of the filter screen plates 111 is not less than five, the fixing protrusion 115 is engaged and connected with the rotating disk 108 through the fixing hole 110, and the connecting frame 116 is slidably connected with the fixing bracket 112. By setting the smoke filtering mechanism 1, not only can the filter screen plates 111 be used to achieve the effect of filtering the smoke, but also the particulate impurities in the smoke can be filtered by the filter screen plates 111, thereby preventing impurities from accumulating inside the heating bin 101, affecting the heat conduction effect of the heating bin 101, thereby affecting the preheating effect of the zinc ingot raw material, and at the same time utilizing The rotating disk 108 can realize the rotation of the filter screen plate 111, which is convenient for filtering the smoke. By pulling the connecting frame 116, the fixing protrusion 115 is driven to squeeze the fixing spring 114, so that the fixing protrusion 115 is separated from the fixing hole 110, thereby realizing the rapid installation and replacement of the filter screen plate 111. When the filter screen plate 111 needs to be cleaned, the filter chamber 106 can be closed by the sealing plate 107, and the other filter chamber 106 continues to work, thereby realizing uninterrupted smoke filtration and improving the efficiency of preheating of zinc ingot raw materials. By setting the spiral heating tube 102, the heating area of ​​the heating chamber 101 can be increased, further improving the efficiency of preheating of zinc ingot raw materials.

[0031] The stirring and conveying mechanism 2 includes a conveying bin 201, a feeding hopper 202 is fixedly installed on one side of the top of the conveying bin 201, a conveying motor 203 is fixedly installed on one side of the conveying bin 201 close to the feeding hopper 202, an output end of the conveying motor 203 is fixedly connected to a conveying rotating rod 204, a spiral blade 205 is fixedly installed on the outer side of the conveying rotating rod 204, and a fixed support rod 206 is rotatably connected to the end of the conveying rotating rod 204, a stirring motor 207 is fixedly installed on one side of the end of the heating bin 101, and a stirring bevel gear 208 is fixedly connected to the output end of the stirring motor 207, and a meshing bevel gear 209 is meshedly connected to one side of the stirring bevel gear 208, and a plurality of driven bevel gears 210 are meshedly connected to the outer side of the meshing bevel gear 209, and a fixing ring 211 is fixedly installed inside the meshing bevel gear 209. A plurality of stirring blades 212 are fixedly installed inside the fixed ring 211. The end of the stirring blade 212 away from the fixed ring 211 is fixedly connected to a rotating ring 213. The rotating ring 213 is rotatably connected to the heating bin 101. By setting the stirring and conveying mechanism 2, not only can the conveying motor 203 be used to drive the conveying rotating rod 204 and the spiral blade 205 to rotate, and the spiral blade 205 can be used to convey the zinc ingot raw material, but also the stirring motor 207 can be used to drive the stirring bevel gear 208 to rotate. The meshing action between the stirring bevel gear 208, the meshing bevel gear disk 209 and the driven bevel gear 210 is used to realize the rotation of the fixed ring 211 and the stirring blade 212, and the zinc ingot raw material inside the heating bin 101 can be stirred, so that the raw material can fully contact the inner wall of the heating bin 101, and the raw material preheating is more uniform.

[0032] Working principle: Before using this zinc ingot raw material automatic preheating device, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 6As shown, first, the zinc ingot raw material to be preheated is put into the conveying bin 201 through the feed hopper 202, and the conveying motor 203 is started to drive the conveying rotating rod 204 and the spiral blade 205 to rotate, and the spiral blade 205 is used to convey the zinc ingot raw material, and at the same time, the stirring motor 207 is used to drive the stirring bevel gear 208 to rotate, and the meshing action between the stirring bevel gear 208, the meshing bevel gear disk 209 and the driven bevel gear 210 is used to realize the rotation of the fixed ring 211 and the stirring blade 212, so that the zinc ingot raw material inside the heating bin 101 can be stirred, so that the raw material can fully contact with the inner wall of the heating bin 101, so that the raw material can be preheated more evenly, and secondly, the smoke generated by the calcination of the rotary kiln is passed into the filter bin 106, and the filter screen 111 is used to achieve the effect of filtering the smoke, so that the particulate impurities in the smoke are filtered by the filter screen 11 1 filtering, thereby preventing impurities from accumulating inside the heating bin 101, affecting the heat conduction effect of the heating bin 101, and thus affecting the preheating effect of the zinc ingot raw material. At the same time, the rotating disk 108 can be used to realize the rotation of the filter screen plate 111, which is convenient for filtering the smoke. By pulling the connecting frame 116, the fixing protrusion 115 is driven to squeeze the fixing spring 114, so that the fixing protrusion 115 is separated from the fixing hole 110, thereby realizing the rapid installation and replacement of the filter screen plate 111. Finally, when it is necessary to clean the filter screen plate 111, the sealing plate 107 can be used to close the filter bin 106, and the other filter bin 106 continues to work, thereby realizing uninterrupted smoke filtration and improving the preheating efficiency of the zinc ingot raw material. By setting the spiral heating tube 102, the heating area of ​​the heating bin 101 can be increased, and the preheating efficiency of the zinc ingot raw material can be further improved.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic preheating device for zinc ingot raw materials, comprising a smoke filter mechanism (1), and an air intake guide pipe (105) installed on one side of the top of the smoke filter mechanism (1); The smoke filtering mechanism (1) is provided with a stirring and conveying mechanism (2) inside, and a stirring motor (207) is provided on one side of the stirring and conveying mechanism (2); It is characterized in that Also includes: The smoke filtering mechanism (1) comprises a heating chamber (101), the inner wall of the heating chamber (101) is provided with a spiral heating tube (102), and an air intake tube (103) is fixedly mounted on one side of the top of the spiral heating tube (102); The end of the spiral heating tube (102) away from the air intake tube (103) is fixedly connected to the exhaust tube (104), and the air intake guide tube (105) is fixedly installed on the top of the air intake tube (103); A filter bin (106) is symmetrically mounted on the top of the air intake guide pipe (105), and a sealing plate (107) is slidably connected to the inner side of the bottom of the filter bin (106).

2. The automatic preheating device for zinc ingot raw materials according to claim 1, characterized in that: Both sides of the two filter bins (106) are rotatably connected to a rotating disk (108), a plurality of mounting slots (109) are provided inside the rotating disk (108), fixing holes (110) are symmetrically provided at the end of the rotating disk (108) close to the mounting slots (109), and a filter screen plate (111) is slidably connected inside the mounting slots (109).

3. The automatic preheating device for zinc ingot raw materials according to claim 2, characterized in that: A fixing bracket (112) is fixedly mounted on the top of the filter screen plate (111), mounting blocks (113) are symmetrically mounted on both sides of the bottom of the fixing bracket (112), a fixing spring (114) is fixedly connected to one side of the mounting block (113), a fixing protrusion (115) is fixedly connected to the top of the fixing spring (114), and a connecting frame (116) is fixedly connected to the tops of the two fixing protrusions (115).

4. The automatic preheating device for zinc ingot raw materials according to claim 1, characterized in that: The stirring and conveying mechanism (2) comprises a conveying bin (201), a feeding hopper (202) being fixedly mounted on one side of the top of the conveying bin (201), a conveying motor (203) being fixedly mounted on one side of the conveying bin (201) close to the feeding hopper (202), an output end of the conveying motor (203) being fixedly connected to a conveying rotating rod (204), and a spiral blade (205) being fixedly mounted on the outer side of the conveying rotating rod (204).

5. The automatic preheating device for zinc ingot raw materials according to claim 4 is characterized in that: The end of the conveying rotating rod (204) is rotatably connected to a fixed support rod (206); the stirring motor (207) is fixedly installed on one side of the end of the heating bin (101); the output end of the stirring motor (207) is fixedly connected to a stirring bevel gear (208); one side of the stirring bevel gear (208) is meshedly connected to a meshing bevel gear disk (209); and the outer side of the meshing bevel gear disk (209) is meshedly connected to a plurality of driven bevel gears (210).

6. The automatic preheating device for zinc ingot raw materials according to claim 5, characterized in that: A fixing ring (211) is fixedly installed inside the meshing bevel gear disk (209), a plurality of stirring blades (212) are fixedly installed inside the fixing ring (211), and a rotating ring (213) is fixedly connected to one end of the stirring blade (212) away from the fixing ring (211), and the rotating ring (213) is rotatably connected to the heating chamber (101).

7. The automatic preheating device for zinc ingot raw materials according to claim 3 is characterized in that: The number of the filter screen plates (111) is not less than five, the fixing protrusion (115) is snap-connected with the rotating disk (108) through the fixing hole (110), and the connecting frame (116) is slidably connected with the fixing bracket (112).

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