CN210817472U - Environment-friendly electric heating zinc powder furnace - Google Patents
Environment-friendly electric heating zinc powder furnace Download PDFInfo
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- CN210817472U CN210817472U CN201921616194.2U CN201921616194U CN210817472U CN 210817472 U CN210817472 U CN 210817472U CN 201921616194 U CN201921616194 U CN 201921616194U CN 210817472 U CN210817472 U CN 210817472U
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Abstract
The utility model provides an environment-friendly electric heating zinc powder furnace, which comprises an electric heating furnace body and a condenser; the electric heating furnace body comprises a feed inlet, a melting tank, an evaporation tank and a heating assembly, wherein the feed inlet is arranged on the side wall of the electric heating furnace body and is communicated with the melting tank; the melting tank is communicated with the evaporation tank through a zinc passing port, the evaporation tank is communicated with the condenser through an air duct, the condenser is communicated with a zinc powder storage bin, and a discharge valve is arranged at a discharge port of the zinc powder storage bin; the heating assembly comprises two groups of heating single pieces which are positioned inside the melting tank and inside the evaporation tank, and the heating single pieces comprise a refractory sleeve arranged on the inner wall of the electric heating furnace body and an electric heating body which is arranged in the refractory sleeve and connected with an external power supply. The whole structure of the environment-friendly electric heating zinc powder furnace is simplified; the electric heating body is adopted for electric heating, no fuel gas fuel and no exhaust gas are discharged, and the environment is protected; the daily output of the furnace is 7.5-8 tons/furnace day, the power consumption is 950 + 1100 Kw.H/T, and the method has the characteristics of high productivity, good practicability, good popularization, good economy and the like.
Description
Technical Field
The utility model relates to the technical field of metal materials, concretely relates to an environmental protection electric heat zinc powder stove for producing zinc powder.
Background
The powdered metal zinc is dark gray, has good reducibility, antirust effect and atmospheric corrosion resistance, can be used as pigment, has extremely strong covering power, and is commonly used for manufacturing antirust paint, anticorrosive paint, strong reducing agent and the like. The metal zinc powder also has larger specific surface area and chemical activity, and is often used as a displacer in metallurgy and chemical industry.
The conventional production method of metallic zinc powder is distillation method, and is characterized by that the solid zinc is heated to 1250 deg.C-1350 deg.C, and changed into zinc vapour, and then condensed by condenser so as to obtain the invented zinc powder. Distillation zinc dust is usually produced by two processes, horizontal and vertical. The zinc powder produced by the domestic horizontal furnace production process has the economic and technical indexes that: the daily output of the furnace is 6-7 tons/day x furnace, and the unit consumption of fuel gas is 180-200 cubic meters/ton zinc powder; the zinc powder produced by the vertical furnace production process has the following economic and technical indexes: the daily output of the furnace is 8-10 tons/day per furnace, and the unit consumption of fuel gas is 260-300 cubic meters per ton of zinc powder. The gas is adopted for heat supply, the exhaust emission is large, and the cost is high.
Patent application 201710836798.7 discloses a high-efficiency zinc powder production device, which comprises an automatic feeding electric zinc furnace, a raw material electric heating device, a condenser, a pulse dust collecting device and a screening and packing device; the automatic feeding zinc electric furnace comprises an electric arc furnace and a feeding device, wherein the electric arc furnace comprises a furnace cover, a furnace body and a furnace bottom electrode, an exhaust port is arranged on one side wall of the furnace body, and a cathode is arranged in the furnace body; the furnace bottom electrode comprises a refractory furnace lining, a conductive flow equalizing plate is arranged below the refractory furnace lining, a group of anode plates are arranged on the refractory furnace lining, the lower part of each anode plate penetrates through the refractory furnace lining to be connected with the conductive flow equalizing plate, and one side of the conductive flow equalizing plate is connected with a cast steel conductive rod; the feeding device comprises a material containing barrel, a feeding hopper, a feeding pipe and a feeding motor arranged on one side of the feeding pipe. The mechanical automation degree is higher.
The invention patent 201410067578.9 discloses a device for producing nano-scale high-purity zinc powder by distillation method, which comprises an induction type electric heating crucible distillation furnace capable of continuously feeding, a reflux and high-temperature overheating disc, a zinc powder condenser and a closed water cooling tower, wherein the induction type electric heating crucible distillation furnace capable of continuously feeding comprises a distillation crucible with an upper cover, a high-aluminum refractory heat-insulating layer, an asbestos layer and a coreless induction furnace coil are sequentially coated outside the distillation crucible body, a feeding port and a steam output conduit are arranged on the upper cover, the lower end of the feeding port on the upper cover is connected with the upper port of a melting crucible, a discharge hole is arranged at the bottom of the melting crucible, the distance from the bottom of the melting crucible to the upper cover of the distillation crucible is 300-350 mm, the reflux and high-temperature overheating disc comprises a tower disc which is formed by integrally connecting a silicon carbide reflux disc at the lower part and a graphite overheating disc at the upper part, a refractory clay layer and a stainless steel shell are sequentially coated outside the reflux disc body, and a high-aluminum, The distillation crucible comprises an asbestos layer, a coreless induction furnace coil and a stainless steel shell, wherein the output end of a steam output conduit on an upper cover of the distillation crucible is communicated with the lower end of a reflux disc, the upper end of a superheating disc is communicated with the feed inlet of a zinc powder condenser, and the hot water and cold water connecting ends of the zinc powder condenser are respectively connected with the corresponding connecting ends of a closed water-cooling tower. The granularity of the product can be controlled between 50nm and 100nm, the purity of the product can reach more than 99.999 percent, and the automation degree is high.
The zinc powder production device adopting the electric heating mode has the defects of small capacity (4-5 tons per day), complex structure, large electromagnetic radiation, difficult maintenance and repair and the like.
In conclusion, the design of the device which has the advantages of large capacity, simple structure, energy conservation and environmental protection and is suitable for zinc powder production is of great significance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an environmental protection electric heat zinc powder stove that the productivity is big, the structure is retrencied, energy-concerving and environment-protective and be applicable to zinc powder production, concrete technical scheme is as follows:
an environment-friendly electric heating zinc powder furnace comprises an electric heating furnace body and a condenser;
the electric heating furnace body comprises a feed inlet, a melting tank, an evaporation tank and a heating assembly, wherein the feed inlet is arranged on the side wall of the electric heating furnace body and is communicated with the melting tank; the melting tank is communicated with the evaporation tank through a zinc passing port, the evaporation tank is communicated with the condenser through an air duct, the condenser is communicated with a zinc powder storage bin, and a discharge valve is arranged at a discharge port of the zinc powder storage bin;
the heating assembly comprises two groups of heating single pieces which are positioned inside the melting tank and inside the evaporation tank, and the heating single pieces comprise a refractory sleeve arranged on the inner wall of the electric heating furnace body and an electric heating body arranged in the refractory sleeve and connected with an external power supply.
Preferably, in the technical scheme, the bottom of the electric heating furnace body is built by adopting light refractory bricks, high-alumina concrete and high-alumina refractory bricks from outside to inside; the surrounding wall body of the electric heating furnace body is built by adopting light insulating bricks and high-aluminum refractory bricks from outside to inside; the top of the electric heating furnace body is built by an arc-shaped plate, clay refractory bricks and light insulating bricks from bottom to top.
Preferably, a partition wall is arranged between the melting tank and the evaporation tank, and the zinc passing port is arranged at the lower end part of the partition wall.
Preferably, in the above technical solution, the refractory casing is disposed on a side wall of the melting tank and/or the evaporation tank in a horizontal direction.
Preferably, in the above technical solution, the refractory sleeves are arranged in parallel, and the refractory sleeves are respectively arranged at the middle positions of the side walls of the melting tank and the evaporation tank; the discharge valve is a flap valve.
Preferably, in the above technical solution, the number of the electric heating elements matches the number of the refractory sleeves.
Preferably, in the above technical solution, the electric heating elements and the refractory sleeves are arranged in one-to-one correspondence.
Preferably, in the above technical scheme, the electric heating body is a silicon carbide rod, and a plurality of the silicon carbide rods are connected with the output end of the external power supply by adopting a star connection method.
Use the technical scheme of the utility model, following beneficial effect has:
(1) the utility model discloses an environment-friendly electric zinc powder furnace, which comprises an electric furnace body and a condenser; the electric heating furnace body comprises a feed inlet, a melting tank, an evaporation tank and a heating assembly, wherein the feed inlet is arranged on the side wall of the electric heating furnace body and is communicated with the melting tank; the melting tank is communicated with the evaporation tank through a zinc passing port, the evaporation tank is communicated with the condenser through an air duct, the condenser is communicated with a zinc powder storage bin, and a discharge valve is arranged at a discharge port of the zinc powder storage bin; the heating assembly comprises two groups of heating single pieces which are positioned inside the melting tank and inside the evaporation tank, and the heating single pieces comprise a refractory sleeve arranged on the inner wall of the electric heating furnace body and an electric heating body arranged in the refractory sleeve and connected with an external power supply. The whole structure of the environment-friendly electric heating zinc powder furnace is simplified; the electric heating body is adopted for electric heating, no fuel gas fuel and no exhaust gas are discharged, and the environment is protected; the daily output of the furnace is 7.5-8 tons/furnace day, the power consumption is 950 + 1100 Kw.H/T, and the method has the characteristics of high productivity, good practicability, good popularization, good economy and the like.
(2) In the utility model, the bottom of the electric heating furnace body is built by light refractory bricks, high-alumina concrete and high-alumina refractory bricks from outside to inside; the surrounding wall body of the electric heating furnace body is built by adopting light insulating bricks and high-aluminum refractory bricks from outside to inside; the top of the electric heating furnace body is built by an arc-shaped plate, clay refractory bricks and light insulating bricks from bottom to top. The light refractory bricks, the high-alumina concrete, the high-alumina refractory bricks, the light insulating bricks, the high-alumina refractory bricks and the clay refractory bricks are made of materials in the prior art (refer to the prior art) and are easy to obtain; the electric heating furnace body is of an integral structure, the sealing performance of the furnace body is good, the closed operation of a system can be realized, and the production performance is improved.
(3) The heating single piece of the utility model adopts the combination of the fire-resistant sleeve and the electric heating body, the fire-resistant sleeve can effectively separate the electric heating body from the furnace chamber, the short circuit caused by the series connection of the electric heating body by zinc steam and the like is avoided, and the service life of the electric heating body is prolonged; the electric heating body adopts a silicon carbide rod, and the heating effect is good.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic structural view of an environment-friendly electric zinc powder furnace in example 1 (a section of an electric furnace body);
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
the device comprises an electric heating furnace body 1, a charging hole 1.1, a melting tank 1.3, an evaporation tank 1.4, a heating assembly 1.41, a refractory sleeve 1.42, an electric heating body 1.5, a zinc passing hole 1.6, light refractory bricks 1.7, high-alumina concrete 1.8, high-alumina refractory bricks 1.9, light insulating bricks 1.10, an arc-shaped plate 1.11, clay refractory bricks 1.12 and a partition wall;
2. 2.1 parts of a condenser, 2.2 parts of a condenser body, 2.2 parts of a cooling water jacket, 2.3 parts of an in-line cooling water pipe;
3. an air duct;
4. zinc powder storage bin, 4.1, discharge port, 4.2 and discharge valve;
5. and (5) foundation piers.
Detailed Description
The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example 1:
referring to fig. 1-3, an environment-friendly electric heating zinc powder furnace comprises an electric heating furnace body 1 and a condenser 2, and the details are as follows:
the electric heating furnace body 1 comprises a feed inlet 1.1, a melting tank 1.2, an evaporation tank 1.3 and a heating assembly 1.4, wherein the feed inlet 1.1 is arranged on the side wall of the electric heating furnace body 1 and is communicated with the melting tank 1.2; the melting tank 1.2 and the evaporation tank 1.3 are arranged in parallel and are communicated through a zinc through port 1.5; evaporating pond 1.3 through the air duct 3 with 2 intercommunications of condenser, condenser 2 and zinc powder storage silo 4 intercommunications, the bin outlet 4.1 department of zinc powder storage silo 4 is equipped with blow-off valve 4.2 (blow-off valve 4.2 is the flap valve). Preference is given here to:
the condenser 2 comprises a condenser body 2.1, a cooling water jacket 2.2 and an in-line cooling water pipe 2.3, the cooling water jacket 2.2 is sleeved on the outer wall of the condenser body 2.1, the in-line cooling water pipe 2.3 is arranged in the cooling water jacket 2.2 to exchange heat inside the condenser body 2.1 to realize a quick cooling effect.
The electric heating furnace body 1 is arranged on the foundation pier 5, and the bottom of the electric heating furnace body is built by light refractory bricks 1.6, high-alumina concrete 1.7 and high-alumina refractory bricks 1.8 from outside to inside; the surrounding wall body of the electric heating furnace body 1 is built by adopting light insulating bricks 1.9 and high-aluminum refractory bricks 1.8 from outside to inside; the top of the electric heating furnace body 1 is built by an arc-shaped plate 1.10, clay refractory bricks 1.11 and light insulating bricks 1.9 from bottom to top.
A partition wall 1.12 is arranged between the melting tank 1.2 and the evaporation tank 1.3, and the zinc passing port 1.5 is arranged at the lower end part of the partition wall (1.12) and is communicated with the melting tank 1.2 and the evaporation tank 1.3.
Heating element 1.4 is including being located melting tank 1.2 inside and being located inside two sets of heating singlets of evaporating pond 1.3, the heating singlet is including setting up refractory casing 1.41 and setting on the 1 inner wall of electric heat furnace body are in just the electric heat body 1.42 of being connected with external power supply in the refractory casing 1.41. Preference is given here to: a plurality of refractory sleeves 1.41 arranged in parallel are arranged inside the melting tank 1.2, and the refractory sleeves 1.41 are arranged in the middle of the side wall of the melting tank 1.2 (7 are schematically shown in fig. 1 and 2); a plurality of refractory sleeves 1.41 arranged in parallel are arranged inside the evaporation pool 1.3, and the refractory sleeves 1.41 are arranged in the middle of the side wall of the evaporation pool 1.3 (12 are schematically shown in fig. 1 and 2); the electric heating bodies 1.42 and the fire-resistant sleeves 1.41 are arranged in a one-to-one correspondence mode, namely, one electric heating body (preferably a silicon carbide rod) is arranged in one fire-resistant sleeve. And a plurality of electric heating bodies (silicon carbide rods) are connected with the output end of an external power supply by adopting a star connection method. The specific installation mode of the refractory casing in this embodiment is: the two ends of the fire-resistant casing are supported by the hole-shaped bricks laid on the wall.
The technical scheme of the embodiment is specifically as follows: adding a blocky zinc ingot into a melting tank 1.2 through a feed inlet 1.1; the massive zinc ingot is melted in a melting tank 1.2; the melted zinc liquid enters an evaporation tank 1.3 from a zinc passing port 1.5, the zinc liquid in the evaporation tank 1.3 is evaporated at high temperature, the formed zinc steam enters a condenser 2 from a gas guide pipe 3 to be condensed into zinc powder, the zinc powder enters a zinc powder storage bin 4, and the zinc powder is collected from an outlet of a discharge valve 4.2 (flap valve) to obtain a zinc powder product. The block-shaped zinc ingot is melted in the melting tank 1.2 and the zinc liquid is evaporated at high temperature in the evaporation tank 1.3 by electrifying and heating an electric heating body (a silicon carbide rod).
By applying the technical scheme of the embodiment, the effects are as follows: the whole structure of the environment-friendly electric heating zinc powder furnace is simplified; the electric heating body is adopted for electric heating, and no gas fuel exists, so that no waste gas is discharged, and the production process is green and environment-friendly; the daily output of the furnace is 7.5-8 tons/furnace day, the power consumption 950-.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An environment-friendly electric heating zinc powder furnace is characterized by comprising an electric heating furnace body (1) and a condenser (2);
the electric heating furnace body (1) comprises a feed inlet (1.1), a melting tank (1.2), an evaporation tank (1.3) and a heating assembly (1.4), wherein the feed inlet (1.1) is arranged on the side wall of the electric heating furnace body (1) and is communicated with the melting tank (1.2); the melting tank (1.2) is communicated with the evaporation tank (1.3) through a zinc passing port (1.5), the evaporation tank (1.3) is communicated with the condenser (2) through an air duct (3), the condenser (2) is communicated with a zinc powder storage bin (4), and a discharge valve (4.2) is arranged at a discharge port (4.1) of the zinc powder storage bin (4);
heating element (1.4) including being located melting tank (1.2) inside and being located inside two sets of heating singlets of evaporating pond (1.3), the heating singlet is including setting up refractory casing (1.41) on electric heat furnace body (1) inner wall and setting are in electric heat-generating body (1.42) that just is connected with external power supply in refractory casing (1.41).
2. The environment-friendly electric heating zinc powder furnace according to claim 1, wherein the bottom of the electric heating furnace body (1) is built by light refractory bricks (1.6), high-alumina concrete (1.7) and high-alumina refractory bricks (1.8) from outside to inside; the surrounding wall body of the electric heating furnace body (1) is built by adopting light insulating bricks (1.9) and high-aluminum refractory bricks (1.8) from outside to inside; the top of the electric heating furnace body (1) is built by an arc-shaped plate (1.10), clay refractory bricks (1.11) and light insulating bricks (1.9) from bottom to top.
3. An environment-friendly electric heating zinc powder furnace according to claim 1, characterized in that a partition wall (1.12) is arranged between the melting tank (1.2) and the evaporation tank (1.3), and the zinc passing port (1.5) is arranged at the lower end part of the partition wall (1.12).
4. An environmentally friendly electrically heated zinc powder furnace according to any of claims 1 to 3, characterized in that the refractory casing (1.41) is arranged in a horizontal direction on the side wall of the melting tank (1.2) and/or the evaporation tank (1.3).
5. The environmental-friendly electric hot zinc powder furnace according to claim 4, characterized in that the refractory sleeves (1.41) are arranged in parallel, and the refractory sleeves (1.41) are respectively arranged at the middle positions of the side walls of the melting tank (1.2) and the evaporation tank (1.3); the discharge valve (4.2) is a flap valve.
6. An environment-friendly electric heating zinc powder furnace according to claim 5, characterized in that the number of the electric heating bodies (1.42) is matched with the number of the refractory sleeves (1.41).
7. The environmental protection electric heating zinc powder furnace according to claim 6, wherein the electric heating elements (1.42) and the fire-resistant sleeves (1.41) are arranged in one-to-one correspondence.
8. The environmental-friendly electric heating zinc powder furnace according to claim 6, wherein the electric heating body (1.42) is a silicon carbide rod, and a plurality of silicon carbide rods are connected with the output end of an external power supply by adopting a star connection method.
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| CN201921616194.2U CN210817472U (en) | 2019-09-26 | 2019-09-26 | Environment-friendly electric heating zinc powder furnace |
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| CN201921616194.2U CN210817472U (en) | 2019-09-26 | 2019-09-26 | Environment-friendly electric heating zinc powder furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524002A (en) * | 2019-09-26 | 2019-12-03 | 湖南新威凌新材料有限公司 | A kind of environmental protection electric heating zinc powder furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524002A (en) * | 2019-09-26 | 2019-12-03 | 湖南新威凌新材料有限公司 | A kind of environmental protection electric heating zinc powder furnace |
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