Process for producing zinc calcine based on cement clinker production line transformation

Abstract

The invention provides a technology for producing zinc calcine based on cement clinker production line transformation. The technology comprises the following operation steps that S1, zinc-containing solid waste, waste tire residues, furfural residues and other waste biomass residues are subjected to batching and stirring; the invention provides a technology for producing zinc calcine based on modification of a cement clinker production line, which comprises the following steps: using zinc-containing solid wastes, waste tire residues, furfural residues and other waste biomass residues, simultaneously increasing raw material balling to increase the permeability of materials in a kiln, arranging a carbonization device in a decomposition furnace to increase the heat value and improve the yield, recovering zinc steam by using zinc hypoxide, and spraying ammonia water to obtain the zinc calcine. Compared with the traditional rotary kiln for producing zinc oxide, the method has the advantages that the fuel cost is reduced by more than 50%, the roasted product utilizes the flue gas with the same property as waste heat, and the roasted product does not use fuel gas or diesel oil, so that the energy cost is saved, and the production cost is reduced. And particularly, zinc in the tire slag can be recycled.

Description

Technical Field

[0001] The invention relates to the field of zinc roasted sand production, and in particular to a process for producing zinc roasted sand based on the transformation of a cement clinker production line. Background Art

[0002] Zinc roasted sand is the product obtained by roasting zinc concentrate. It is a brown micro-granular solid, mainly containing zinc oxide, zinc sulfate, zinc sulfide, etc. It is an important raw material for the production of direct zinc oxide, electrolytic zinc, electric furnace zinc powder, etc.

[0003] When traditional rotary kilns produce zinc oxide, the material continuously rolls and moves forward as the cylinder rotates inside the rotary kiln. At the same time, the kiln head uses natural gas as raw heat energy to spray fire and heat the material, causing a series of physical and chemical reactions to occur in the material, resulting in higher production costs.

[0004] Therefore, it is necessary to provide a process for producing zinc calcine based on the transformation of cement clinker production line to solve the above technical problems. In particular, it provides a new process solution for producing secondary zinc oxide and zinc calcine for the transformation of cement clinker production line. Summary of the Invention

[0005] The invention provides a process for producing zinc roasted sand based on the transformation of a cement clinker production line, which solves the problem of high cost in the current production of zinc roasted sand.

[0006] In order to solve the above technical problems, the present invention provides a process for producing zinc calcine based on the transformation of a cement clinker production line, comprising the following steps: S1: After zinc-containing solid waste, waste tire residue, furfural residue and other waste biomass residue are batched, stirred, pelletized and dried, the dried pelletized material is conveyed through a conveyor device into the original limestone silo for storage and use; S2: Then it enters the bottom of the original calciner through the conveying and lifting equipment, passes through the slope at the bottom of the carbonization device, and is equipped with ten hydraulic propulsion devices around the circle, which propel the rotary kiln smoke chamber one by one in a relay manner to reach the rotary kiln; S3: The temperature of the carbonized spherical material increases, and with the spontaneous combustion temperature, it will continue to rise until the oxidation-reduction reaction produces zinc vapor, which, under the action of induced draft, passes through the channel in the center of the carbonization device along with the flue gas and enters the decomposition furnace; S4: Then it passes through the moth neck pipe and the five-stage preheater and enters the waste heat boiler. The flue gas containing zinc vapor is cooled and turns into zinc oxide and enters the bag dust collector; S5: The zinc oxide recovered by the dust collector and the zinc oxide recovered by the flue gas cooling device enter the newly added material seal pump under the action of the scraper and are sent to the storage bin; S6: Then it passes through the meter and elevator from the raw cement raw material inlet, through the primary, secondary and tertiary calciners to enter the calcination; S7: The finished zinc roasted sand is calcined in the four-stage calciner and discharged from the lower part of the fourth-stage calciner into the storage tank.

[0007] Preferably, the inner cavity capacity of the carbonization device is 30 minutes of production capacity.

[0008] Preferably, a protective device is provided on the top of the conveying device, and the protective device includes a protective box and a plurality of guide plates. The bottom of the protective box is fixedly installed on the top of the conveying device, and the plurality of guide plates are fixedly installed inside the protective box.

[0009] Preferably, a dust removal device is provided on one side of the protective box, and the dust removal device includes a collecting box, a fan, a filter, multiple conveying pipes and multiple dust suction ports. One side of the collecting box is fixedly installed on one side of the protective box, the fan is fixedly installed inside the collecting box, the filter is fixedly installed inside the collecting box, one end of the multiple conveying pipes is fixedly installed inside the collecting box, and one side of the multiple dust suction ports is respectively fixedly installed on one end of the multiple conveying pipes.

[0010] Preferably, the plurality of dust suction ports are fixedly mounted on the top and one side of the protective box respectively.

[0011] Preferably, a scraper is provided on one side of the protective box, and two guide plates are provided on the bottom of the protective box, and the tops of the two guide plates are fixedly connected with connection pads.

[0012] Preferably, a limiting device is provided inside the scraper, and the limiting device includes an adjustment groove, a limiting pin and a limiting plate. The adjustment groove is opened inside the scraper, the limiting pin is slidably connected to the inside of the adjustment groove, and the limiting plate is rotatably connected to the surface of the limiting pin.

[0013] Preferably, an adjustment device is provided inside the protective box, and the adjustment device includes a rotating groove, the rotating groove, two threaded blocks and a threaded rod. The rotating groove is opened inside the protective box, the two threaded blocks are slidingly connected to the inside of the rotating groove, and the threaded rod is threadedly connected to the inside of the threaded block.

[0014] Preferably, a sealing device is provided inside the protective box, and the sealing device includes two reset grooves, two reset blocks, two reset springs and a sealing plate. The two reset grooves are opened inside the protective box, and the two reset blocks are respectively slidably connected to the inside of the two reset grooves. The two reset springs are respectively provided at one end of the two reset grooves and are respectively located inside the two reset grooves. The top of the sealing plate is fixedly connected to the bottom of the reset block.

[0015] Preferably, a rotating device is provided inside the protective box, and the rotating device includes a rotating motor, a rotating disk and a rotating wheel. The rotating motor is fixedly installed on the top of the protective box, the rotating disk is rotatably connected to the inside of the protective box, and the top of the rotating wheel is fixedly connected to the bottom of the rotating disk.

[0016] Compared with the related art, the process for producing zinc calcine based on the transformation of cement clinker production line provided by the present invention has the following beneficial effects: The present invention provides a process for producing zinc roasted sand based on the transformation of a cement clinker production line. The process uses zinc-containing solid waste and waste biomass residues such as waste tire residue and furfural residue, while increasing the raw material pelletizing to increase the permeability of the material in the kiln. A carbonization device is built into the decomposition furnace to increase the calorific value and improve the output. Secondary zinc oxide is used to recover zinc vapor, and ammonia water is sprayed into the furnace to eliminate sulfur dioxide and nitrogen oxides in the flue gas, purify the zinc roasted sand, increase the output and improve the added value. Compared with the production of zinc oxide in a traditional rotary kiln, the fuel cost is reduced by more than 50%. The roasted sand product utilizes flue gas with the same properties as the waste heat, and does not use gas or diesel in the traditional rotary kiln to burn roasted sand, thus saving energy costs. In particular, zinc in the tire residue can also be recovered. All central control operations greatly reduce production costs and solve the problem of overcapacity in cement production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first embodiment of a process for producing zinc roasted sand based on the transformation of a cement clinker production line provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the conveying device shown; Figure 3 for Figure 1 A schematic cross-sectional structural diagram of the protective box shown; Figure 4 A schematic structural diagram of a second embodiment of a process for producing zinc calcine based on the transformation of a cement clinker production line provided by the present invention; Figure 5 for Figure 4 The structural diagram of the regulating device shown; Figure 6 for Figure 4 An enlarged schematic diagram of part A is shown; Figure 7 for Figure 5 An enlarged schematic diagram of part B is shown; Figure 8 A schematic structural diagram of a third embodiment of a process for producing zinc calcine based on the transformation of a cement clinker production line provided by the present invention; Figure 9 for Figure 8 The schematic diagram of the reset slot is shown in FIG.

[0018] Numbers in the figure: 1, conveying device, 2, protective device, 21, protective box, 22, guide plate, 3, dust removal device, 31, collection box, 32, fan, 33, filter, 34, conveying pipe, 35, dust suction port, 4. Limiting device, 41. Adjusting slot, 42. Limiting pin, 43. Limiting plate, 5. Sealing device, 51. Reset groove, 52. Reset block, 53. Reset spring, 54. Sealing plate, 6. Rotating device, 61. Rotating motor, 62. Rotating disk, 63. Rotating wheel, 7. Scraper, 8. Guide plate, 9. Connecting pad, 10. Adjusting device, 101. Rotating groove, 102. Threaded block, 103. Threaded rod. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] First embodiment Please refer to Figure 1 、 Figure 2 and Figure 3 ,in, Figure 1 A schematic structural diagram of a first embodiment of a process for producing zinc roasted sand based on the transformation of a cement clinker production line provided by the present invention; Figure 2 for Figure 1 A process for producing zinc roasted sand based on the transformation of a cement clinker production line includes the following steps: S1: After zinc-containing solid waste, waste tire residue, furfural residue and other waste biomass residue are batched, stirred, pelletized and dried, the dried pelletized material is conveyed through a conveyor device into the original limestone silo for storage and use; S2: Then it enters the bottom of the original calciner through the conveying and lifting equipment, passes through the slope at the bottom of the carbonization device, and is equipped with ten hydraulic propulsion devices around the circle, which propel the rotary kiln smoke chamber one by one in a relay manner to reach the rotary kiln; S3: The temperature of the carbonized spherical material increases, and with the spontaneous combustion temperature, it will continue to rise until the oxidation-reduction reaction produces zinc vapor, which, under the action of induced draft, passes through the channel in the center of the carbonization device along with the flue gas and enters the decomposition furnace; S4: Then it passes through the moth neck pipe and the five-stage preheater and enters the waste heat boiler. The flue gas containing zinc vapor is cooled and turns into zinc oxide and enters the bag dust collector; S5: The zinc oxide recovered by the dust collector and the zinc oxide recovered by the flue gas cooling device enter the newly added material seal pump under the action of the scraper and are sent to the storage bin; S6: Then it passes through the meter and elevator from the raw cement raw material inlet, through the primary, secondary and tertiary calciners to enter the calcination; S7: The finished zinc roasted sand is calcined in the four-stage calciner and discharged from the lower part of the fourth-stage calciner into the storage tank.

[0021] Each calciner is fed with flue gas at a tangential line, thus generating centrifugal force, which can carry away impurities and fluorine and chlorine in zinc oxide with the flue gas, thereby increasing the zinc content of the roasted sand.

[0022] Because the secondary zinc oxide before entering the calciner is cold and has a recovery effect on zinc vapor, during normal production, the material seal pump is passed through the conversion valve to allow the ternary zinc oxide to enter its storage bin.

[0023] The primary and secondary calciners are also the primary and secondary preheaters for cement production.

[0024] The inner cavity capacity of the carbonization device is sufficient for 30 minutes of production.

[0025] Ten hydraulic propulsion devices are installed around the slope at the bottom of the carbonization device, which propel the rotary kiln smoke chamber one by one in relay mode to the rotary kiln.

[0026] A protective device 2 is provided on the top of the conveying device 1. The protective device 2 includes a protective box 21 and multiple guide plates 22. The bottom of the protective box 21 is fixedly installed on the top of the conveying device 1, and the multiple guide plates 22 are fixedly installed inside the protective box 21.

[0027] One end of a plurality of guide plates 22 is fixedly mounted on both sides of the inner wall of the protection box 21 in an up-and-down staggered manner, so as to buffer and guide the materials entering the protection box 21, thereby reducing the generation of smoke and dust.

[0028] A dust removal device 3 is provided on one side of the protective box 21, and the dust removal device 3 includes a collecting box 31, a fan 32, a filter 33, multiple conveying pipes 34 and multiple dust suction ports 35. One side of the collecting box 31 is fixedly installed on one side of the protective box 21, the fan 32 is fixedly installed inside the collecting box 31, the filter 33 is fixedly installed inside the collecting box 31, one end of the multiple conveying pipes 34 are fixedly installed inside the collecting box 31, and one side of the multiple dust suction ports 35 are respectively fixedly installed on one end of the multiple conveying pipes 34.

[0029] The plurality of dust suction ports 35 are fixedly mounted on the top and one side of the protective box 21 .

[0030] Dust suction ports 35 are fixedly installed on both sides of the top of the protection box 21 and one end of one side of the protection box 21, which are used to absorb dust floating from the protection box 21 through multiple dust suction ports 35, thereby preventing the dust from floating into the air.

[0031] The plurality of dust suction ports 35 are connected to the collection box 31 via a plurality of conveying pipes 34 .

[0032] The filter 33 is used to filter the dust that enters the collection box 31 and leave the dust inside the collection box 31, which is convenient for unified cleaning later.

[0033] One side of the collection box 31 is sealed with a detachable mounting plate, which facilitates cleaning or maintenance of the internal filter 33, fan 32 and dust.

[0034] After the batching machine completes the material proportioning, it is transported into the interior of the protective box 21 and guided by the multi-layer guide plate 22 to reduce the generation of smoke and dust. At the same time, by starting the fan 32, multiple dust suction ports 35 generate suction to suck in the floating smoke and dust. After being transported into the interior of the collection box 31 through the conveying pipe 34, it is filtered through the filter net 33 and stored in the interior of the collection box 31.

[0035] The working principle of the process for producing zinc calcine based on the transformation of cement clinker production line provided by the present invention is as follows: The zinc-containing solid waste, waste tire residue, furfural residue and other waste biomass residue are batched, stirred, pelletized and dried by a batching machine, and the dried pelletized material is transported to the original limestone silo for storage and use through a conveying device 1; Then the materials are transported to the bottom of the calciner through the conveying and lifting equipment. After entering the carbonization device, they are pushed into the rotary kiln smoke chamber one by one through ten hydraulic propulsion devices installed around the slope at the bottom of the carbonization device. At this time, the processed material is transformed into zinc vapor and then enters the decomposition furnace from the rotary kiln and is heated to 800 degrees by the burner. The dust settles back into the rotary kiln. Then, the heated zinc vapor enters the upper part, and the flue gas is divided into two paths and enters the fifth calcining cyclone; Subsequently, the flue gas simultaneously enters the carbonization flue gas pipe and the carbonization furnace composed of the heat exchange tubes in the flue gas pipe, then enters the fifth calcination cyclone, then enters the fourth calcination cyclone, then enters the third calcination cyclone and the second calcination cyclone. At this time, the staff adds purchased secondary zinc oxide into the device through the second feed hopper to cool the flue gas. Under the conditions of suspended reverse heat exchange, the flue gas is then drawn into the first calcination cyclone. During this process, the zinc vapor in the flue gas will mix with the added secondary zinc oxide. Subsequently, the flue gas is discharged through the first calcining cyclone, and the secondary zinc oxide passes through the first calcining cyclone and is sequentially calcined in the second calcining cyclone, the third calcining cyclone and the fourth calcining cyclone to become zinc roasted sand, and then is discharged through the fourth calcining cyclone and sent to the finished product warehouse through the conveying equipment; If the cement clinker production capacity is withdrawn, the cement clinker production line does not need to be equipped with a tee pipe. Instead, multiple heat exchange material pipes can be directly installed in the vertical section of the flue gas pipe that is tangentially connected to the flue gas pipe at the outlet of the decomposition furnace and the fifth calcining cyclone to form the same structure as the carbonization furnace.

[0036] Compared with the related art, the process for producing zinc calcine based on the transformation of cement clinker production line provided by the present invention has the following beneficial effects: The present invention provides a process for producing zinc roasted sand based on the transformation of a cement clinker production line. The process uses zinc-containing solid waste and waste biomass residues such as waste tire residue and furfural residue, while increasing the raw material pelletizing to increase the permeability of the material in the kiln. A carbonization device is built into the decomposition furnace to increase the calorific value and improve the output. Secondary zinc oxide is used to recover zinc vapor, and ammonia water is sprayed into the furnace to eliminate sulfur dioxide and nitrogen oxides in the flue gas, purify the zinc roasted sand, increase the output and improve the added value. Compared with the production of zinc oxide in a traditional rotary kiln, the fuel cost is reduced by more than 50%. The roasted sand product utilizes flue gas with the same properties as the waste heat, and does not use gas or diesel in the traditional rotary kiln to burn roasted sand, thus saving energy costs. In particular, zinc in the tire residue can also be recovered. All central control operations greatly reduce production costs and solve the problem of overcapacity in cement production lines.

[0037] Second embodiment Please refer to Figure 4 、 Figure 5 、 Figure 6 and Figure 7 Based on the first embodiment of this application, which provides a process for producing zinc roasted sand by retrofitting a cement clinker production line, the second embodiment of this application provides another process for producing zinc roasted sand by retrofitting a cement clinker production line. The second embodiment is merely a preferred embodiment of the first embodiment, and implementation of the second embodiment will not affect the implementation of the first embodiment alone.

[0038] Specifically, the difference between the second embodiment of the present application and the process for producing zinc roasted sand based on the transformation of a cement clinker production line is that a scraper 7 is provided on one side of the protective box 21, and two guide plates 8 are provided at the bottom of the protective box 21, and the tops of the two guide plates 8 are fixedly connected with connecting pads 9.

[0039] The connecting pad 9 is made of rubber material and is used to connect the guide plate 8 and the inner wall of the protection box 21 to prevent materials from entering the gap between the guide plate 8 and the protection box 21.

[0040] A limiting device 4 is provided inside the scraper 7, and the limiting device 4 includes an adjustment groove 41, a limiting pin 42 and a limiting plate 43. The adjustment groove 41 is opened inside the scraper 7, the limiting pin 42 is slidably connected to the inside of the adjustment groove 41, and the limiting plate 43 is rotatably connected to the surface of the limiting pin 42.

[0041] The limiting pin 42 is a bolt, and a threaded hole adapted to the limiting pin 42 is provided inside the protection box 21 , so that when the limiting pin 42 rotates to one side, it moves inside the threaded hole, thereby driving the limiting plate 43 to move.

[0042] The limiting plate 43 is used to limit the scraper 7 .

[0043] One end of the limiting pin 42 is fixedly connected to a rotating handle for facilitating the rotation of the limiting pin 42 .

[0044] An adjusting device 10 is provided inside the protective box 21, and the adjusting device 10 includes a rotating groove 101, the rotating groove 101, two threaded blocks 102 and a threaded rod 103. The rotating groove 101 is opened inside the protective box 21, and the two threaded blocks 102 are both slidingly connected to the inside of the rotating groove 101, and the threaded rod 103 is threadedly connected to the inside of the threaded block 102.

[0045] The threaded rod 103 is a counter-threaded rod, and the interior of the two threaded blocks 102 is provided with threaded holes adapted to the threaded rod 103, so that when the threaded rod 103 rotates to one side, the two threaded blocks 102 connect the two guide plates 8 and move toward the middle or both sides to adjust the distance between the two guide plates 8.

[0046] The rotation groove 101 is a rectangular groove, and the threaded block 102 is a rectangular block adapted to the rotation groove 101 .

[0047] When the height of the scraper 7 needs to be adjusted, the limit pin 42 is rotated to one side, thereby driving the limit plate 43 to move to one side and separate from the surface of the scraper 7, and then the scraper 7 is moved upward to drive the adjustment groove 41 to move upward to a suitable position on the surface of the limit pin 42.

[0048] By rotating the limiting pin 42 to one side and resetting it, the limiting plate 43 is driven to move to one side until it contacts the surface of the scraper 7 , thereby limiting the scraper 7 .

[0049] When adjusting the position of the guide plate 8, the threaded rod 103 is rotated to one side, thereby driving the two threaded blocks 102 to move toward the middle on the surface of the threaded rod 103, so that the two guide plates 8 are moved to the appropriate position.

[0050] The working principle of the process for producing zinc calcine based on the transformation of cement clinker production line provided by the present invention is as follows: During use, the guide plate 22 inside the protection box 21 conveys the material to the surface of the conveying device 1 , and the width of the material is limited by the two limiting plates 43 .

[0051] When the conveying device 1 conveys the material to one side, the material is scraped flat by the scraper 7 after passing under the scraper 7 .

[0052] Compared with the related art, the process for producing zinc calcine based on the transformation of cement clinker production line provided by the present invention has the following beneficial effects: The present invention provides a process for producing zinc roasted sand based on the transformation of a cement clinker production line. The scraper 7 cooperates with two guide plates 8 and two connecting pads 9 to scrape and level the material discharged from the protective box 21 and block both sides, so that the material can be evenly laid on the conveying device 1, making it convenient for the conveying device 1 to weigh and convey more accurately.

[0053] Third embodiment Please refer to Figure 8 and Figure 9 Based on the first embodiment of this application, which provides a process for producing zinc roasted sand by transforming a cement clinker production line, the second embodiment of this application provides another process for producing zinc roasted sand by transforming a cement clinker production line. The third embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0054] Specifically, the difference of the process for producing zinc roasted sand based on the transformation of a cement clinker production line provided in the third embodiment of the present application is that, in the process for producing zinc roasted sand based on the transformation of a cement clinker production line, a sealing device 5 is provided inside the protective box 21, and the sealing device 5 includes two reset grooves 51, two reset blocks 52, two reset springs 53 and a sealing plate 54. The two reset grooves 51 are both opened inside the protective box 21, and the two reset blocks 52 are respectively slidably connected to the inside of the two reset grooves 51. The two reset springs 53 are respectively provided at one end of the two reset grooves 51 and are respectively located inside the two reset grooves 51. The top of the sealing plate 54 is fixedly connected to the bottom of the reset block 52.

[0055] The top of the sealing plate 54 is fixedly connected to the bottom of the two reset blocks 52, so that when the rotating wheel 63 rotates to one side and separates from the sealing plate 54, the two reset blocks 52 connected to the sealing plate 54 are pushed by the two reset springs 53 to automatically move to one side and reset.

[0056] A rotating device 6 is provided inside the protective box 21, and the rotating device 6 includes a rotating motor 61, a rotating disk 62 and a rotating wheel 63. The rotating motor 61 is fixedly installed on the top of the protective box 21, the rotating disk 62 is rotatably connected to the inside of the protective box 21, and the top of the rotating wheel 63 is fixedly connected to the bottom of the rotating disk 62.

[0057] The output end of the rotating motor 61 is fixedly mounted on the top of the fan 32 through a coupling, and the fan 32 is fixedly mounted on the bottom of the rotating disk 62, which is used to drive the fan 32 to rotate after starting the rotating motor 61, thereby adjusting the direction of the fan 32.

[0058] The rotating wheel 63 is a cam, which is used to push the sealing plate 54 to move after the rotating wheel 63 rotates to one side and contacts one side of the sealing plate 54.

[0059] The working principle of the process for producing zinc calcine based on the transformation of cement clinker production line provided by the present invention is as follows: During use, when the materials collected in the collecting box 31 need to be discharged, the rotating motor 61 is started to drive the fan 32 connected to the rotating disk 62 to rotate to one side, thereby driving the rotating wheel 63 to rotate to one side.

[0060] When the rotating wheel 63 rotates to one side until it contacts one side of the sealing plate 54 , it pushes the sealing plate 54 and the two reset blocks 52 connected thereto to move to one side within the two reset grooves 51 , while squeezing the two reset springs 53 .

[0061] When the fan 32 rotates 180 degrees, the rotating motor 61 stops rotating and the sealing plate 54 is fully opened. When the material inside the collection box 31 is completely discharged, the fan 32 can be started to blow air to clean the filter 33 to prevent the filter 33 from being blocked.

[0062] The fan 32 is reset by starting the rotary motor 61 to rotate in the reverse direction. When the fan 32 is reset, the two reset springs 53 push the two reset blocks 52 connected to the sealing plate 54 to move to one side to reset.

[0063] Compared with the related art, the process for producing zinc calcine based on the transformation of cement clinker production line provided by the present invention has the following beneficial effects: The present invention provides a process for producing zinc roasted sand based on the transformation of a cement clinker production line. The output end of the fan 32 is adjusted by a rotating device 6, and the sealing device 5 is opened, thereby facilitating the removal of materials inside the collection box 31. At the same time, the adjusted fan 32 is used to blow air through the filter 33 for cleaning.

[0064] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A process for producing zinc calcine based on the transformation of a cement clinker production line, characterized in that: include: Follow these steps: S1: After zinc-containing solid waste, waste tire residue, furfural residue and other waste biomass residue are batched, stirred, pelletized and dried, the dried pelletized material is conveyed through a conveyor device into the original limestone silo for storage and use; S2: Then it enters the bottom of the original calciner through the conveying and lifting equipment, passes through the slope at the bottom of the carbonization device, and is equipped with ten hydraulic propulsion devices around the circle, which propel the rotary kiln smoke chamber one by one in a relay manner to reach the rotary kiln; S3: The temperature of the carbonized spherical material increases, and with the spontaneous combustion temperature, it will continue to rise until the oxidation-reduction reaction produces zinc vapor, which, under the action of induced draft, passes through the channel in the center of the carbonization device along with the flue gas and enters the decomposition furnace; S4: Then it passes through the moth neck pipe and the five-stage preheater and enters the waste heat boiler. The flue gas containing zinc vapor is cooled and turns into zinc oxide and enters the bag dust collector; S5: The zinc oxide recovered by the dust collector and the zinc oxide recovered by the flue gas cooling device enter the newly added material seal pump under the action of the scraper and are sent to the storage bin; S6: Then it passes through the meter and elevator from the raw cement raw material inlet, through the primary, secondary and tertiary calciners to enter the calcination; S7: The finished zinc roasted sand is calcined in the four-stage calciner and discharged from the lower part of the fourth-stage calciner into the storage tank.

2. A process for producing zinc calcine based on the transformation of a cement clinker production line according to claim 1, characterized in that, The inner cavity capacity of the carbonization device is sufficient for 30 minutes of production.

3. A process for producing zinc calcine based on cement clinker production line transformation according to claim 1, characterized in that, A protective device is provided on the top of the conveying device, and the protective device includes a protective box and a plurality of guide plates. The bottom of the protective box is fixedly installed on the top of the conveying device, and the plurality of guide plates are fixedly installed inside the protective box.

4. A process for producing zinc calcine based on the transformation of a cement clinker production line according to claim 3, characterized in that, A dust removal device is provided on one side of the protective box, and the dust removal device includes a collecting box, a fan, a filter, multiple conveying pipes and multiple dust suction ports. One side of the collecting box is fixedly installed on one side of the protective box, the fan is fixedly installed inside the collecting box, the filter is fixedly installed inside the collecting box, one end of the multiple conveying pipes is fixedly installed inside the collecting box, and one side of the multiple dust suction ports is respectively fixedly installed on one end of the multiple conveying pipes.

5. A process for producing zinc calcine based on the transformation of a cement clinker production line according to claim 4, characterized in that, The plurality of dust suction ports are respectively fixedly mounted on the top and one side of the protective box.

6. A process for producing zinc calcine based on the transformation of a cement clinker production line according to claim 5, characterized in that: A scraper is provided on one side of the protection box, and two guide plates are provided on the bottom of the protection box. The tops of the two guide plates are fixedly connected with connection pads.

7. A process for producing zinc calcine based on the transformation of a cement clinker production line according to claim 6, characterized in that: A limiting device is provided inside the scraper, and the limiting device includes an adjusting groove, a limiting pin and a limiting plate. The adjusting groove is opened inside the scraper, the limiting pin is slidably connected to the inside of the adjusting groove, and the limiting plate is rotatably connected to the surface of the limiting pin.

8. A process for producing zinc calcine based on the transformation of a cement clinker production line according to claim 6, characterized in that: An adjustment device is provided inside the protective box, and the adjustment device includes a rotating groove, two threaded blocks and a threaded rod. The rotating groove is opened inside the protective box, and the two threaded blocks are slidingly connected to the inside of the rotating groove, and the threaded rod is threadedly connected to the inside of the threaded block.

9. A process for producing zinc calcine based on the transformation of a cement clinker production line according to claim 8, characterized in that: A sealing device is provided inside the protective box, and the sealing device includes two reset grooves, two reset blocks, two reset springs and a sealing plate. The two reset grooves are opened inside the protective box, and the two reset blocks are respectively slidably connected to the inside of the two reset grooves. The two reset springs are respectively provided at one end of the two reset grooves and are respectively located inside the two reset grooves. The top of the sealing plate is fixedly connected to the bottom of the reset block.

10. A process for producing zinc calcine based on the transformation of a cement clinker production line according to claim 9, characterized in that: A rotating device is provided inside the protective box, and the rotating device includes a rotating motor, a rotating disk and a rotating wheel. The rotating motor is fixedly installed on the top of the protective box, the rotating disk is rotatably connected to the inside of the protective box, and the top of the rotating wheel is fixedly connected to the bottom of the rotating disk.

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