CN218846840U - Device for preventing vertical side warp during vacuum distillation of FNX resistance furnace - Google Patents
Device for preventing vertical side warp during vacuum distillation of FNX resistance furnace Download PDFInfo
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- CN218846840U CN218846840U CN202320114105.4U CN202320114105U CN218846840U CN 218846840 U CN218846840 U CN 218846840U CN 202320114105 U CN202320114105 U CN 202320114105U CN 218846840 U CN218846840 U CN 218846840U
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Abstract
The utility model provides a device that vertical side warp during prevents FNX resistance furnace vacuum distillation, includes builds a plurality of walls of perpendicular to FNX furnace longitudinal two big side furnace inside linings in the centre of FNX vacuum resistance furnace by laying bricks or stones, falls into a plurality of spaces with the furnace of FNX vacuum resistance furnace, is provided with two resistance heat-generating bodies in every space, all corresponds on the stove outer covering of every space top FNX vacuum resistance furnace and installs the bell, the steel sheet that the wall body upper surface was provided with, the upper surface of steel sheet and the upper flange upper surface of FNX vacuum resistance furnace are on same horizontal plane, and the steel sheet is in the same place with the upper flange welded connection of FNX vacuum resistance furnace, and the welding has the cooling jacket that equals with steel sheet length on the steel sheet upper surface longitudinal direction, is provided with water inlet and delivery port on the cooling jacket. The utility model discloses the setting of device, when the temperature carries out vacuum distillation under 1100-1300 ℃ in the stove, under the vertical big side wall body is not by compression deformation's the condition, improves FNX vacuum resistance furnace's life greatly.
Description
Technical Field
The utility model belongs to the technical field of aluminium cell overhaul sediment resource recovery, concretely relates to prevent device that vertical side warp during FNX resistance furnace vacuum distillation.
Background
When the aluminum electrolytic cell is overhauled, the solid waste taken out from the aluminum electrolytic cell during the overhaul of the aluminum electrolytic cell is caused by the fact that the overhaul slag of the aluminum electrolytic cell contains toxic and harmful substances such as soluble fluoride, alkali metal, carbide, cyanide and the like. Therefore, the aluminum electrolysis cell overhaul slag is also considered as a hazardous solid waste which is toxic and harmful to the environment. The aluminum electrolytic cell overhaul slag dangerous waste solid material consists of two parts of solid materials. One part is carbonaceous solid waste or called waste cathode carbon block, which mainly comprises waste cathode carbon blocks of overhaul residues, edge carbon blocks and waste carbon blocks formed by tamping paste between the edge carbon blocks and the waste cathode carbon blocks, and the other part of the overhaul residues is non-carbonaceous solid waste and mainly comprises refractory materials and heat-insulating materials at the bottom of the overhaul residue cathode carbon blocks.
The solid waste of the overhaul residues contains about 35 percent of carbon, about 30 percent of fluoride and 0.1 to 0.2 percent of cyanide, so the solid waste is not allowed to be buried. Therefore, a great deal of research is put into at home and abroad aiming at detoxifying and/or separating carbon, fluoride electrolyte and alkali metal in the overhaul residues, so as to realize resource utilization of the overhaul residues and dangerous waste solid materials.
Feng Naixiang discloses an industrial method for recovering carbon, fluoride, electrolyte and metallic sodium from overhaul residues of a vacuum distillation aluminum electrolytic cell. The vacuum resistance furnace used in the method is a novel resistance furnace which takes the crushed block materials formed by crushing the aluminum electrolysis cell overhaul slag waste cathode carbon blocks as the resistance heating body, and is invented in CN 209027266U. We name this resistance furnace as FNX vacuum resistance furnace. The furnace is a rectangular box body, the rectangular box body vacuum resistance furnace works under the conditions of high temperature and vacuum, two large side surfaces in the longitudinal direction of the furnace body bear the side surface pressure of large atmospheric pressure to the longitudinal direction of the furnace, so that the furnace shells and the linings of the two large side surfaces in the longitudinal direction of the vacuum resistance furnace are compressed and deformed, and the service life of the vacuum distillation resistance furnace using the broken blocks of the aluminum electrolytic bath overhaul residue waste cathode carbon blocks as resistance heating bodies is shortened.
SUMMERY OF THE UTILITY MODEL
In order to prolong the service life of the vacuum distillation resistance furnace which uses the aluminum electrolytic cell overhaul slag waste cathode carbon block as a resistance heating body, the utility model provides a device for preventing the longitudinal side deformation of the FNX resistance furnace during vacuum distillation.
In order to realize the purpose, the utility model adopts the following technical scheme:
the utility model provides a prevent device that vertical side warp during FNX resistance furnace vacuum distillation, includes builds a plurality of walls of perpendicular to FNX furnace longitudinal two big side furnace inside linings in the centre of FNX vacuum resistance furnace, divides into a plurality of spaces with the furnace of FNX vacuum resistance furnace, is provided with two resistance heat-generating bodies that make with the scrap material of aluminium cell waste cathode carbon piece in every space, all corresponds on the stove outer covering of every space top FNX vacuum resistance furnace and installs the bell, the wall upper surface is provided with the steel sheet the same with FNX vacuum resistance furnace's last mouthful flange thickness, and the upper surface of steel sheet and FNX vacuum resistance furnace's last mouthful flange upper surface are on same horizontal plane, and steel sheet and FNX vacuum resistance furnace's last mouthful flange welded connection together, and the welding has the cooling water jacket that equals with steel sheet length on the steel sheet upper surface longitudinal direction, is provided with water inlet and delivery port on the cooling water jacket, when FNX vacuum resistance furnace high temperature work, lets in the cooling water jacket, prevents that the steel sheet of wall upper portion from appearing warping.
When the number of the resistance heating elements is 2n, the number of the corresponding furnace covers is n, the number of the corresponding wall bodies is n-1, and n is a natural number more than or equal to 2.
When 4 resistance heating bodies made of broken blocks of waste cathode carbon blocks are arranged in the FNX vacuum resistance furnace, a wall body is arranged between every two resistance heating bodies in the FNX vacuum resistance furnace, a hearth of the FNX vacuum resistance furnace with the 4 resistance heating bodies in the furnace is divided into a left space and a right space, and 2 furnace covers are arranged on furnace shells of the corresponding FNX vacuum resistance furnace. By analogy, when 6 resistance heating elements made of the broken blocks of the waste cathode carbon blocks exist in the FNX vacuum resistance furnace, the total number of the wall bodies is 2, a wall body is arranged between every two resistance heating elements in the FNX vacuum resistance furnace, a hearth of the FNX vacuum resistance furnace with 6 resistance heating elements in the furnace is divided into three spaces, and three furnace covers are installed on a furnace shell of the corresponding FNX vacuum resistance furnace.
The wall body is built by high-temperature-resistant and fire-resistant materials, the lower portion of the wall body is hollow, holes are formed in the wall body, and the hollow portion of the lower portion of the wall body is communicated with spaces on two sides of the wall body.
The lower surface of the wall body and the lower surface of the resistance heating body are on the same level; the upper surface of the wall body and the upper surface of the furnace lining of the FNX vacuum resistance furnace are on the same horizontal plane.
The width of the steel plate is the same as that of the wall body; the length of the steel plate is equal to the sum of the length of the wall body and the thickness of furnace linings on two longitudinal sides of the FNX vacuum resistance furnace.
And connecting bolts vertical to the upper surfaces of the steel plates are arranged in the longitudinal direction of the steel plates on the two sides of the cooling water jacket.
Screw holes are formed in peripheral flanges of each furnace cover of the left furnace cover and the right furnace cover at the top of the FNX vacuum resistance furnace, the screw holes in one side of the cooling water jacket on each furnace cover correspond to connecting bolts on the steel plate, and other screw holes correspond to holes formed in an upper opening flange of the FNX vacuum resistance furnace.
The upper surface of the furnace cover is provided with a housing, and the housing is filled with a refractory heat-insulating material.
The technical effects of the utility model are that:
the utility model discloses a build the wall body of perpendicular to furnace inside lining by laying bricks or stones in the middle of furnace to set up cooling jacket on the wall body, when FNX vacuum resistance furnace during operation, let in the cooling water to the cooling jacket in, make stove power transmission and evacuation carry out the vacuum distillation of aluminium cell overhaul sediment, thereby reach when making the temperature carry out vacuum distillation under 1100-1300 ℃ of the temperature in the stove, vertical big side wall body is not by under compression deformation's the condition, improve the life of FNX vacuum resistance furnace greatly.
Drawings
FIG. 1 is a view of the front side and a partial wall of a device body for preventing deformation of the longitudinal side of the FNX resistance furnace during vacuum distillation in the large longitudinal side of the front side of the FNX vacuum resistance furnace;
FIG. 2 is an enlarged, fragmentary, schematic view of FIG. 1 of the present invention;
FIG. 3 is a top view of the furnace lid and its local connection to the wall;
1-FNX vacuum resistance furnace, 2-wall body, 3-resistance heating body, 4-graphite electric conductor, 5-hole, 6-hollow, 7-space, 8-furnace inner lining, 9-upper opening flange, 10-steel plate, 11-cooling water jacket, 12-cooling water, 13-connecting bolt, 14-furnace cover, 15-furnace cover peripheral flange, 16-screw hole and 17-steel cover.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in figures 1 to 3, a device for preventing the deformation of the longitudinal side surface of the FNX resistance furnace during vacuum distillation, which comprises a wall body 2 which is built in the middle of the FNX vacuum resistance furnace 1 with four resistance heating elements in the furnace and is vertical to the furnace linings 8 at two longitudinal side surfaces of the FNX furnace, the space in the hearth of the FNX vacuum resistance furnace 1 with the four resistance heating elements in the furnace is divided into a left space 7 and a right space 7, two resistance heating elements 3 made of the broken blocks of the waste cathode carbon blocks of an aluminum electrolytic bath are respectively arranged at the left side and the right side, the upper parts of the two resistance heating elements 3 are both connected with a graphite electric conductor 4, and a furnace cover 14 is arranged above the graphite electric conductor 4; the upper surface of the wall body 2 is provided with a steel plate 10 with the same thickness as an upper flange 9 of the FNX vacuum resistance furnace 1, the upper surface of the steel plate 10 and the upper surface of the upper flange 9 of the FNX vacuum resistance furnace 1 are on the same horizontal plane, two ends of the steel plate 10 in the length direction are connected with the upper flange 9 of the FNX vacuum resistance furnace 1 in a welding mode, a cooling water jacket 11 with the same length as the steel plate 10 is welded on the center line of the upper surface of the steel plate 10 in the longitudinal direction, when the FNX vacuum resistance furnace 1 works, cooling water 12 is introduced into the cooling water jacket 11, and the steel plate 10 is prevented from being heated and deformed.
The wall body 2 is built by high-temperature-resistant and fire-resistant materials, the lower part of the wall body 2 is hollow 6, a hole 5 is formed in the wall, and the hollow 6 in the lower part of the wall body 2 is communicated with spaces 7 on two sides of the wall body 2.
The lower surface of the wall body 2 and the lower surface of the resistance heating body 3 are on the same level; the upper surface of the wall body 2 and the upper surface of the furnace lining 8 of the FNX vacuum resistance furnace 1 are on the same horizontal plane.
The width of the steel plate 10 is the same as that of the wall body 2; the length of the steel plate 10 is equal to the sum of the length of the wall body 2 and the thickness of the furnace linings 8 on the two longitudinal sides of the FNX vacuum resistance furnace 1.
The steel plates 10 on both sides of the cooling water jacket 10 are provided with connecting bolts 13 perpendicular to the upper surface of the steel plates 10 in the longitudinal direction.
Screw holes 16 are formed in a peripheral flange 15 of each of a left furnace cover 14 and a right furnace cover 14 at the top of the FNX vacuum resistance furnace 1.
A metal box 17 is arranged on the upper surface of the furnace cover 14, and a fireproof heat-insulating material 18 is filled in the metal box 17.
Screw holes 16 on two sides of the cooling water jacket 11 on the upper surface of the wall body 2 on each furnace cover 14 are connected with connecting bolts 13 on steel plates 10 on two sides of the cooling water jacket 11 and are fixed through nuts, and other screw holes 16 correspond to holes on an upper opening flange 9 of the FNX vacuum resistance furnace 1 and are fastened through bolts and nuts.
The application method of the device for preventing the longitudinal side deformation of the FNX resistance furnace during vacuum distillation comprises the following steps:
after materials are filled in the FNX vacuum resistance furnace 1, two furnace covers 14 are respectively covered on two sides of a cooling water jacket 11 on a steel plate 10 on the upper surface of a wall body 2, screw holes 16 on the edges of the furnace covers 14 close to the cooling water jacket 11 are sleeved on connecting bolts 13 on two sides of the cooling water jacket 11, other screw holes 16 on a peripheral flange 15 of the furnace covers correspond to holes on the edge of an upper opening flange 9 of the FNX vacuum resistance furnace 1, after bolts penetrate through the screw holes 16 on the peripheral flange 15 of the furnace covers and the holes on the upper opening flange 9, nuts are screwed on the bolts to seal the furnace covers 14 and the furnace body, the furnace is heated up by power supply and vacuumized to carry out vacuum distillation of aluminum cell overhaul residues under the temperature condition of 1100-1300 ℃.
The utility model discloses the device can prevent the compression deformation of the vertical big side of FNX vacuum resistance furnace 1.
Claims (8)
1. The utility model provides a prevent device that FNX resistance furnace longitudinal side warp during vacuum distillation, its characterized in that includes builds a plurality of walls of perpendicular to FNX furnace longitudinal two big side furnace inside linings in the centre of FNX vacuum resistance furnace, divides into a plurality of spaces with the furnace chamber of FNX vacuum resistance furnace, is provided with two resistance heat-generating bodies that make with the disintegrating mass of aluminium cell useless negative pole carbon piece in every space, all corresponds on the stove outer covering of FNX vacuum resistance furnace of every space top portion and installs the bell, the wall body upper surface is provided with the steel sheet the same with FNX vacuum resistance furnace's last mouthful flange thickness, and the upper surface of steel sheet and FNX vacuum resistance furnace's last mouthful flange upper surface are on same horizontal plane, and the steel sheet is in the same place with the last mouthful flange welded connection of FNX vacuum resistance furnace, and the welding has the cooling water jacket that equals steel sheet length in the steel sheet upper surface longitudinal direction, is provided with water inlet and the delivery port on the cooling water jacket, and when FNX vacuum resistance furnace high temperature work, lets in the cooling water jacket, prevents that the upper portion of water jacket from appearing warping.
2. The device according to claim 1, for preventing longitudinal side distortion during vacuum distillation in an FNX electric resistance furnace, wherein: when the number of the resistance heating elements is 2n, the number of the corresponding furnace covers is n, the number of the corresponding wall bodies is n-1, and n is a natural number more than or equal to 2.
3. The device according to claim 1, for preventing longitudinal side distortion during vacuum distillation in an FNX electric resistance furnace, wherein: the wall body is built by high-temperature-resistant and fire-resistant materials, the lower portion of the wall body is hollow, holes are formed in the wall body, and the hollow portion of the lower portion of the wall body is communicated with spaces on two sides of the wall body.
4. An apparatus according to claim 1, wherein the FNX resistance furnace is adapted to prevent lateral longitudinal distortion during vacuum distillation, wherein: the lower surface of the wall body and the lower surface of the resistance heating body are on the same level; the upper surface of the wall body and the upper surface of the furnace lining of the FNX vacuum resistance furnace are on the same horizontal plane.
5. An apparatus according to claim 1, wherein the FNX resistance furnace is adapted to prevent lateral longitudinal distortion during vacuum distillation, wherein: the width of the steel plate is the same as that of the wall body; the length of the steel plate is equal to the sum of the length of the wall body and the thickness of furnace linings on two longitudinal sides of the FNX vacuum resistance furnace.
6. An apparatus according to claim 1, wherein the FNX resistance furnace is adapted to prevent lateral longitudinal distortion during vacuum distillation, wherein: and connecting bolts vertical to the upper surfaces of the steel plates are arranged in the longitudinal direction of the steel plates on the two sides of the cooling water jacket.
7. An apparatus according to claim 6, wherein the FNX resistance furnace is adapted to prevent lateral deformation during vacuum distillation, wherein: screw holes are formed in peripheral flanges of each furnace cover of the left furnace cover and the right furnace cover at the top of the FNX vacuum resistance furnace, the screw holes in one side of the cooling water jacket on each furnace cover correspond to connecting bolts on the steel plate, and other screw holes correspond to holes formed in an upper opening flange of the FNX vacuum resistance furnace.
8. The device according to claim 1, for preventing longitudinal side distortion during vacuum distillation in an FNX electric resistance furnace, wherein: the upper surface of the furnace cover is provided with a housing, and the housing is filled with a fireproof heat-insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320114105.4U CN218846840U (en) | 2023-01-18 | 2023-01-18 | Device for preventing vertical side warp during vacuum distillation of FNX resistance furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320114105.4U CN218846840U (en) | 2023-01-18 | 2023-01-18 | Device for preventing vertical side warp during vacuum distillation of FNX resistance furnace |
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| Publication Number | Publication Date |
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| CN218846840U true CN218846840U (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320114105.4U Active CN218846840U (en) | 2023-01-18 | 2023-01-18 | Device for preventing vertical side warp during vacuum distillation of FNX resistance furnace |
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| CN (1) | CN218846840U (en) |
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2023
- 2023-01-18 CN CN202320114105.4U patent/CN218846840U/en active Active
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