CN211739104U - Wear-resisting anti-blocking type high temperature solid returning charge ware - Google Patents
Wear-resisting anti-blocking type high temperature solid returning charge ware Download PDFInfo
- Publication number
- CN211739104U CN211739104U CN202020104100.XU CN202020104100U CN211739104U CN 211739104 U CN211739104 U CN 211739104U CN 202020104100 U CN202020104100 U CN 202020104100U CN 211739104 U CN211739104 U CN 211739104U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- impeller
- end cover
- side end
- wear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model relates to the technical field of high-temperature solid material conveying, in particular to a wear-resistant anti-blocking high-temperature solid material returning device, wherein a tooth-shaped groove is processed on the inner side wall of a central through hole of an end cover, and a gas purging port is arranged on the tooth-shaped groove and used for reducing dust entering a dynamic seal part; the metal chain is arranged on the impeller and used for cleaning the inner surface of the impeller, so that materials can be prevented from being bonded and blocked on the surface of the impeller; cooling water is introduced into the rotating shaft to reduce the temperature of the rotating shaft, and refractory castable is filled in a gap formed by the impeller and the bottom plate, so that the high temperature resistance of the return valve can be improved; and the wear-resistant alloy is welded on the outer edge of the impeller in a surfacing mode and used for reducing the abrasion of high-temperature materials to the impeller. The utility model discloses the blockage, the card that contain the solid material mixture production such as cubic inorganic matter, salt and dust in the transport, the wearing and tearing scheduling problem have been solved to the returning charge ware, and the strength on the circulating fluidized bed boiler returns the material valve or the unloading valve can not satisfy this operating mode needs yet usually.
Description
Technical Field
The utility model belongs to the technical field of the high temperature solid material is carried, concretely relates to wear-resisting stifled type high temperature solid returning charge ware that prevents.
Background
With the development of garbage disposal, a garbage pyrolysis technology has been developed, wherein the garbage pyrolysis technology uses a circulating fluidized bed to heat a solid heat carrier, and then uses the solid heat carrier to pyrolyze garbage. The high-temperature solid material after pyrolysis is a mixture consisting of a heat carrier, carbon residue, dust, blocky inorganic matters and the like, wherein the blocky inorganic matters comprise metals, bricks and tiles and the like, and the high-temperature solid material is heated and incinerated in a furnace through a material returning device to complete the circulation of the solid heat carrier.
In a typical circulating fluidized bed boiler system, non-mechanical valves, such as L-valves, J-valves, etc., are typically used to push solid particles only by gas; mechanical valves, such as butterfly valves, gate valves, etc., are used in small quantities to control the solids by valve action. However, for the garbage pyrolysis device, the components of the garbage after pyrolysis are complex, and impurities such as massive inorganic matters, salts, dust and the like in the heat carrier enter the material returning device along with the heat carrier. Problems arise during the return process: blocky inorganic matters in the high-temperature solid materials can block the material returning device; the salt in the high-temperature solid material can be adhered to the inner surface of the material returning device at high temperature; dust in the high temperature solid material can enter the gap of the rotating shaft, resulting in the sealing failure of the shaft.
In addition, if the existing high-temperature rotary valve is adopted, the high-temperature working condition can be borne by measures of selecting heat-resistant stainless steel as a valve material, adding water to the central shaft for cooling, selecting a high-temperature-resistant bearing and the like. However, the following problems still exist when conveying the solid materials of the garbage pyrolysis:
1. high temperature dust can destroy the reliability that the movive seal influences the unloading, and the dust can get into the clearance of rotation axis and sealing member, and in the course of the work, the dust can grind and destroy the surface of sealing member and axle, causes gas or dust to leak, can seriously influence equipment operation safety.
2. Salts and dust possibly contained in the high-temperature solid materials can be hardened on the inner surface of the impeller trough, and even the impeller is blocked, so that normal blanking is influenced.
3. The rotary blanking device commonly used in engineering has no reasonable structural design aiming at high-temperature working conditions, and although cooling water is introduced into the center of an impeller rotating shaft of a single high-temperature rotary valve, the high temperature of materials is not considered to cause the relative displacement of the rotating shaft and a bearing seat, so that the rotating shaft is blocked.
In order to meet the requirements of refuse pyrolysis material returning and solve the problems, a wear-resistant anti-blocking high-temperature solid material returning device needs to be designed.
Disclosure of Invention
An object of the utility model is to provide a wear-resisting anti-blocking type high temperature solid returns glassware can be used for the returning charge of high temperature solid material.
The technical scheme of the utility model as follows:
a wear-resistant anti-blocking high-temperature solid material returning device comprises a rotary valve body, a side end cover, an impeller, a packing gland and a rotary shaft;
the upper part of the rotary valve body is provided with a feed inlet, the lower part of the rotary valve body is provided with a discharge outlet, and the rotary valve body is connected with a return pipeline through the feed inlet and the discharge outlet;
the left side and the right side of the rotary valve body are respectively provided with a port;
the two side end covers are respectively arranged at two side end ports of the rotary valve body;
a central through hole is processed at the center of the side end cover and is matched with the rotating shaft;
the rotating shaft penetrates through central through holes of the two side end covers, the middle part of the rotating shaft is positioned in the rotating valve body, and two ends of the rotating shaft are respectively positioned outside the two side end covers;
the impeller is welded in the middle of the rotating shaft, an arc-shaped bottom plate is fixedly welded at the bottom of a trough of the impeller, and the surface of the bottom plate is polished smoothly to reduce dead angles in the impeller;
a fixed ring is arranged on the material stirring plane of the impeller, and the metal chain is connected with the fixed ring and can swing around the fixed ring; when the impeller rotates, the metal chain moves along with the impeller to clean the inner surface of the impeller;
the baffle plates are fixed with the rotating shaft, and only a tiny gap is left between the baffle plates and the inner wall of the side end cover for blocking dust;
a bearing seat is fixedly arranged on the outer part of the side end cover of the rotating shaft on the left side, a bearing A is fixedly clamped in the bearing seat, and the end cover A of the bearing seat is fixed on the side end cover through a bolt and sealed through an oil seal; the left end of the rotating shaft is provided with an external thread, and the rotating shaft is locked and fixed through a locking nut after being provided with a check ring and used for limiting the bearing A;
the other bearing seat is fixedly arranged on the outer part of the side end cover of the rotating shaft on the right side, the bearing B is clamped in the bearing seat, and the bearing seat end cover B is fixed on the side end cover through a bolt and sealed through an oil seal; a gap is reserved between the bearing seat end cover B and the bearing seat, and the bearing B can move along the rotating shaft along with the expansion and extension of the rotating shaft in the range of the gap and is used for offsetting the displacement between the rotating shaft and the bearing seat at high temperature; the right end of the rotating shaft is provided with an external thread, and the rotating shaft is locked and fixed through a locking nut after being assembled with a check ring and used for limiting the bearing B;
a water inlet hole is axially processed on the left end surface of the rotating shaft and is coaxial with the rotating shaft; the opening of the water inlet hole is connected with one end of a water-cooling rotary joint, and the other end of the water-cooling rotary joint is connected with a water inlet pipe and a water return pipe;
a steel pipe is arranged in the middle of the water-cooling rotary joint, and the steel pipe extends into a water inlet of the rotary shaft and is used for introducing cooling water for cooling;
the left end of the rotating shaft is connected with one end of a speed reducer sequentially through a chain wheel A, a roller chain and a chain wheel B, the other end of the speed reducer is connected with a motor, and the rotating shaft and the impeller are driven to rotate through the motor;
the motor install on the motor cabinet, be equipped with the jackscrew on the motor cabinet for withstand the motor, prevent that the motor from removing after the atress.
The side end cover is characterized by also comprising a tooth-shaped groove processed on the inner side wall of the central through hole of the side end cover and used for blocking dust;
and a gas blowing opening is processed on the tooth-shaped groove and is communicated with an external gas source for blowing off dust entering the gap.
And a graphite packing is arranged at the contact position of the central through hole of the side end cover and the rotating shaft and is compressed by a packing gland so as to realize the sealing between the rotating shaft and the side end cover.
And refractory castable is filled in a gap formed by the impeller and the bottom plate for reducing heat transfer of high-temperature materials to the rotating shaft.
And a surfacing wear-resistant alloy layer is processed on the outer edge of the impeller and is used for reducing the abrasion of high-temperature materials to the impeller.
Refractory fibers are stuffed in a gap between the impeller and the baffle and a gap between the baffle and the side end cover for preventing dust from entering.
The diameters of circular plates at two ends of the impeller are larger, and only a small gap is left between the edge of the circular plate and the inner wall of the rotary valve body, so that the overflow of solid materials is reduced.
The upper edge of the discharge port is provided with an inclined plane, which is beneficial to discharging the accumulated materials in the rotary valve body.
The length of the trough of the impeller is larger than the diameter of the feed inlet, and a space for containing blocky inorganic matters is reserved.
And protective covers are arranged outside the chain wheel A, the roller chain and the chain wheel B.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses a material returning device, wherein a tooth-shaped groove is processed on the inner side wall of the central through hole of the end cover, and a gas purging port is arranged on the tooth-shaped groove for reducing dust entering the dynamic seal position; the metal chain is arranged on the impeller and used for cleaning the inner surface of the impeller, so that materials can be prevented from being bonded and blocked on the surface of the impeller; cooling water is introduced into the rotating shaft to reduce the temperature of the rotating shaft, and refractory castable is filled in a gap formed by the impeller and the bottom plate, so that the high temperature resistance of the return valve can be improved; the wear-resistant alloy is overlaid on the outer edge of the impeller and used for reducing the abrasion of high-temperature materials to the impeller; when the bearing of the rotating shaft is designed, one end of the rotating shaft is of a fixed structure, and the other end of the rotating shaft is of a sliding structure, so that the influence of high-temperature deformation and the like on the material returning device can be reduced.
(2) The utility model discloses the blockage, the card that contain the solid material mixture production such as cubic inorganic matter, salt and dust in the transport, the wearing and tearing scheduling problem have been solved to the returning charge ware, and the strength on the circulating fluidized bed boiler returns the material valve or the unloading valve can not satisfy this operating mode needs yet usually.
Drawings
FIG. 1 is a front sectional view of a material returning device;
FIG. 2 is a schematic view taken along line A-A in FIG. 1;
fig. 3 is a top view of the return feeder.
In the figure: the device comprises a rotary valve body 1, a side end cover 2, an impeller 3, a packing gland 4, a rotating shaft 5, a graphite packing 6, a bearing seat 7, a bearing A8, an oil seal 9, a bearing seat end cover A10, a retainer ring 11, a locknut 12, a bearing seat end cover B13, a metal chain 14, a fixed ring 15, a base plate 16, a baffle 17, a steel pipe 18, a water-cooled rotary joint 19, a water inlet pipe 20, a water return pipe 21, a chain wheel A22, a roller chain 23, a chain wheel B24, a speed reducer 25, a motor 26, a motor seat 27, a top thread 28, a protective cover 29, a refractory castable 301, a wear-resistant alloy layer 302, a refractory fiber 303, a feed inlet 1A, a.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The wear-resistant anti-blocking high-temperature solid material returning device shown in fig. 1 to 3 comprises a rotary valve body 1, a side end cover 2, an impeller 3, a packing gland 4 and a rotary shaft 5.
The upper part of the rotary valve body 1 is provided with a feed inlet 1A, the lower part is provided with a discharge outlet 1B, and the rotary valve body is connected with a material returning pipeline through the feed inlet 1A and the discharge outlet 1B. The upper edge of the discharge port 1B is provided with an inclined plane, which is beneficial to discharging the materials accumulated in the rotary valve body 1. The left side and the right side of the rotary valve body 1 are respectively provided with a port.
The number of the side end covers 2 is two, and the two side end covers are respectively arranged at two side end openings of the rotary valve body 1. And a central through hole is processed at the central position of the side end cover 2 and is matched with the rotating shaft 5. And a tooth-shaped groove is processed on the inner side wall of the central through hole and used for blocking part of dust. And a gas blowing opening 2A is formed in the tooth-shaped groove and communicated with an external gas source for blowing off dust entering the gap.
The rotating shaft 5 passes through the central through holes of the two side end covers 2, wherein the middle part of the rotating shaft 5 is positioned inside the rotating valve body 1, and the two ends of the rotating shaft 5 are respectively positioned outside the two side end covers 2. And a graphite packing 6 is arranged at the contact position of the central through hole of the side end cover 2 and the rotating shaft 5 and is pressed tightly through a packing gland 4, so that the sealing between the rotating shaft 5 and the side end cover 2 is realized.
The impeller 3 is welded in the middle of the rotating shaft 5, the arc-shaped bottom plate 16 is fixedly welded at the bottom of the trough of the impeller 3, the surface of the bottom plate 16 is polished smoothly, dead angles in the impeller 3 are reduced, and hardening and blocking of salts and the like in the material returning device are further reduced. The gap enclosed by the impeller 3 and the bottom plate 16 is filled with refractory castable 301 for reducing heat transfer from high-temperature materials to the rotating shaft 5. The length of the trough of the impeller 3 is larger than the diameter of the feed inlet 1A, and a certain space for accommodating blocky inorganic matters is reserved.
A fixed ring 15 is arranged on the material stirring plane of the impeller 3, and the metal chain 14 is connected with the fixed ring 15 and can swing around the fixed ring 15. When the impeller 3 rotates, the metal chain 14 moves to clean the inner surface of the impeller 3.
A surfacing wear-resistant alloy layer 302 is processed on the outer edge of the impeller 3 and is used for reducing the abrasion of high-temperature materials to the impeller 3. The diameters of circular plates at two ends of the impeller 3 are larger, and only a small gap is left between the edge of the circular plate and the inner wall of the rotary valve body 1, so that the overflow of solid materials is reduced.
The rotating shaft 5 and the outer sides of the circular plates at the two ends of the impeller 3 are respectively provided with a baffle 17, the baffles 17 are fixed with the rotating shaft 5, and only a small gap is left between the baffles 17 and the inner wall of the side end cover 2 for blocking part of dust. Refractory fibers 303 are inserted into the gap between the impeller 3 and the baffle 17 and the gap between the baffle 17 and the side end cap 2 to prevent dust from entering.
A bearing seat 7 is fixedly arranged on the outer part of the side end cover 2 of the rotating shaft 5 positioned on the left side, a bearing A8 is fixedly clamped in the bearing seat 7, and a bearing seat end cover A10 is fixed on the side end cover 2 through bolts and sealed through an oil seal 9. And an external thread is processed at the left end of the rotating shaft 5, and the rotating shaft is locked and fixed by a locking nut 12 after being installed in a retainer ring 11 and is used for limiting the bearing A8.
And another bearing seat 7 is fixedly arranged on the outer part of the side end cover 2 of the rotating shaft 5 on the right side, a bearing B is clamped in the bearing seat 7, and a bearing seat end cover B13 is fixed on the side end cover 2 through a bolt and sealed through an oil seal 9. A gap is left between the bearing seat end cover B13 and the bearing seat 7, and the bearing B can move along the rotating shaft 5 along with the expansion and extension of the rotating shaft 5 in the gap range, so as to offset the displacement between the rotating shaft 5 and the bearing seat 7 at high temperature. And an external thread is processed at the right end of the rotating shaft 5, and the rotating shaft is locked and fixed through a locking nut 12 after being installed in a retainer ring 11 and is used for limiting the bearing B.
And a water inlet hole is axially processed on the left end surface of the rotating shaft 5 and is coaxial with the rotating shaft 5. The opening of the water inlet hole is connected with one end of a water-cooling rotary joint 19, and the other end of the water-cooling rotary joint 19 is connected with a water inlet pipe 20 and a water return pipe 21. And a steel pipe 18 is arranged in the middle of the water-cooling rotary joint 19, and the steel pipe 18 extends into a water inlet of the rotary shaft 5 and is used for introducing cooling water for cooling.
The left end of the rotating shaft 5 is connected with one end of the speed reducer 25 through the chain wheel A22, the roller chain 23 and the chain wheel B24 in sequence, the other end of the speed reducer 25 is connected with the motor 26, the rotating shaft 5 and the impeller 3 are driven to rotate through the motor 26, and the influence of high temperature on the motor 26 is reduced. The motor 26 is installed on a motor base 27, and a jackscrew 28 is arranged on the motor base 27 and used for jacking the motor 26 and preventing the motor 26 from moving after being stressed. And a protective cover 29 is arranged outside the chain wheel A22, the roller chain 23 and the chain wheel B24.
High-temperature solid materials enter the material returning device from the feeding hole 1A, the motor 26 and the speed reducer 25 drive the impeller 3 to rotate through the roller chain 23, and the materials are brought to the discharging hole 1B.
Claims (10)
1. The utility model provides a wear-resisting anti-blocking type high temperature solid returning charge ware which characterized in that: comprises a rotary valve body (1), a side end cover (2), an impeller (3), a packing gland (4) and a rotating shaft (5);
the upper part of the rotary valve body (1) is provided with a feeding hole (1A), the lower part is provided with a discharging hole (1B), and the rotary valve body is connected with a material returning pipeline through the feeding hole (1A) and the discharging hole (1B);
the left side and the right side of the rotary valve body (1) are respectively provided with a port;
the two side end covers (2) are respectively arranged at the two side end openings of the rotary valve body (1);
a central through hole is processed at the central position of the side end cover (2) and is matched with the rotating shaft (5);
the rotating shaft (5) penetrates through central through holes of the two side end covers (2), the middle part of the rotating shaft (5) is positioned inside the rotating valve body (1), and two ends of the rotating shaft (5) are respectively positioned outside the two side end covers (2);
the impeller (3) is welded in the middle of the rotating shaft (5), an arc-shaped bottom plate (16) is fixedly welded at the bottom of a trough of the impeller (3), and the surface of the bottom plate (16) is polished smoothly so as to reduce dead angles in the impeller (3);
a fixed ring (15) is arranged on the material stirring plane of the impeller (3), and the metal chain (14) is connected with the fixed ring (15) and can swing around the fixed ring (15); when the impeller (3) rotates, the metal chain (14) moves along with the impeller to clean the inner surface of the impeller (3);
a baffle (17) is respectively arranged on the rotating shaft (5) and outside circular plates at two ends of the impeller (3), the baffle (17) is fixed with the rotating shaft (5), and only a tiny gap is left between the baffle (17) and the inner wall of the side end cover (2) for blocking dust;
a bearing seat (7) is fixedly arranged on the outer part of the side end cover (2) of the rotating shaft (5) on the left side, a bearing A (8) is fixedly clamped in the bearing seat (7), and a bearing seat end cover A (10) is fixed on the side end cover (2) through a bolt and sealed through an oil seal (9); an external thread is processed at the left end of the rotating shaft (5), and the rotating shaft is locked and fixed through a locking nut (12) after being installed in a retainer ring (11) and is used for limiting a bearing A (8);
the other bearing seat (7) is fixedly arranged on the outer part of the side end cover (2) of the rotating shaft (5) on the right side, the bearing B is clamped in the bearing seat (7), and the bearing seat end cover B (13) is fixed on the side end cover (2) through a bolt and sealed through an oil seal (9); a gap is reserved between the bearing seat end cover B (13) and the bearing seat (7), and the bearing B can move along the rotating shaft (5) along with the expansion and extension of the rotating shaft (5) in the range of the gap and is used for offsetting the displacement between the rotating shaft (5) and the bearing seat (7) at high temperature; an external thread is processed at the right end of the rotating shaft (5), and the rotating shaft is locked and fixed through a locking nut (12) after being installed in a retainer ring (11) and used for limiting a bearing B;
a water inlet hole is axially processed on the left end surface of the rotating shaft (5), and the water inlet hole is coaxial with the rotating shaft (5); the opening of the water inlet hole is connected with one end of a water-cooling rotary joint (19), and the other end of the water-cooling rotary joint (19) is connected with a water inlet pipe (20) and a water return pipe (21);
a steel pipe (18) is arranged in the middle of the water-cooling rotary joint (19), and the steel pipe (18) extends into a water inlet hole of the rotary shaft (5) and is used for introducing cooling water for cooling;
the left end of the rotating shaft (5) is connected with one end of a speed reducer (25) sequentially through a chain wheel A (22), a roller chain (23) and a chain wheel B (24), the other end of the speed reducer (25) is connected with a motor (26), and the rotating shaft (5) and the impeller (3) are driven to rotate through the motor (26);
the motor (26) is installed on the motor base (27), and the jackscrew (28) is arranged on the motor base (27) and used for jacking the motor (26) and preventing the motor (26) from moving after being stressed.
2. The wear-resistant anti-blocking high-temperature solid material returning device as claimed in claim 1, wherein: the side end cover is characterized by also comprising a tooth-shaped groove processed on the inner side wall of the central through hole of the side end cover (2) and used for blocking dust;
and a gas blowing opening (2A) is formed in the tooth-shaped groove and communicated with an external gas source for blowing off dust entering the gap.
3. The wear-resistant anti-blocking high-temperature solid material returning device as claimed in claim 2, wherein: and a graphite packing (6) is arranged at the position where the central through hole of the side end cover (2) is contacted with the rotating shaft (5) and is pressed tightly through a packing gland (4) so as to realize the sealing between the rotating shaft (5) and the side end cover (2).
4. The wear-resistant anti-blocking high-temperature solid material returning device as claimed in claim 3, wherein: refractory castable (301) is filled in a gap formed by the impeller (3) and the bottom plate (16) for reducing heat transfer of high-temperature materials to the rotating shaft (5).
5. The wear-resistant anti-blocking high-temperature solid material returning device as claimed in claim 4, wherein: and a surfacing wear-resistant alloy layer (302) is processed on the outer edge of the impeller (3) and is used for reducing the abrasion of high-temperature materials to the impeller (3).
6. The wear-resistant anti-blocking high-temperature solid material returning device as claimed in claim 5, wherein: refractory fibers (303) are plugged into gaps between the impeller (3) and the baffle (17) and gaps between the baffle (17) and the side end cover (2) for preventing dust from entering.
7. The wear-resistant anti-blocking high-temperature solid material returning device as claimed in claim 6, wherein: the diameters of circular plates at two ends of the impeller (3) are larger, and only a small gap is left between the edge of the circular plate and the inner wall of the rotary valve body (1) so as to reduce the overflow of solid materials.
8. The wear-resistant anti-blocking high-temperature solid material returning device as claimed in claim 7, wherein: the upper edge of the discharge port (1B) is provided with an inclined plane, which is beneficial to discharging the accumulated materials in the rotary valve body (1).
9. The wear-resistant anti-blocking high-temperature solid material returning device as claimed in claim 8, wherein: the length of the trough of the impeller (3) is larger than the diameter of the feed inlet (1A), and a space for containing blocky inorganic matters is reserved.
10. The wear-resistant anti-blocking high-temperature solid material returning device of claim 9, characterized in that: and a protective cover (29) is arranged outside the chain wheel A (22), the roller chain (23) and the chain wheel B (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020104100.XU CN211739104U (en) | 2020-01-17 | 2020-01-17 | Wear-resisting anti-blocking type high temperature solid returning charge ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020104100.XU CN211739104U (en) | 2020-01-17 | 2020-01-17 | Wear-resisting anti-blocking type high temperature solid returning charge ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211739104U true CN211739104U (en) | 2020-10-23 |
Family
ID=72879441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020104100.XU Active CN211739104U (en) | 2020-01-17 | 2020-01-17 | Wear-resisting anti-blocking type high temperature solid returning charge ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211739104U (en) |
-
2020
- 2020-01-17 CN CN202020104100.XU patent/CN211739104U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113137614A (en) | Wear-resisting anti-blocking type high temperature solid returning charge ware | |
| CN1076042C (en) | Rotary heating chamber for solids | |
| EP1920028B1 (en) | Pyrolysis system | |
| JP2019510949A (en) | Rotary seal mechanism | |
| CN210241582U (en) | Kiln tail slagging-off preventing and deslagging device of solid dangerous waste incineration rotary kiln | |
| CN211739104U (en) | Wear-resisting anti-blocking type high temperature solid returning charge ware | |
| CN106675590B (en) | A kind of thermal cracker and its application method of Fischer-Tropsch synthesis petroleum tailings | |
| CN114060822A (en) | Rotary anaerobic pyrolysis device for small sealing surface | |
| CN101932732B (en) | Charge distribution apparatus | |
| CN211527068U (en) | Rotary kiln with air supplementing channel | |
| CN111336270B (en) | Pneumatic wear-resistant ceramic rotary slag discharge valve | |
| CN212126551U (en) | High-temperature shaftless screw conveyor | |
| CN209876947U (en) | Combined smelting furnace for treating arsenic alkali slag and low-melting-point heavy metal waste slag | |
| CN107416435A (en) | Frequency Adjustable formula ultrahigh-temperature discharge valve | |
| CN209783267U (en) | Chemical converter | |
| CN221166587U (en) | High-temperature slag waste heat recovery system | |
| CN202032595U (en) | Cold tube type boiler slag cooling device in jacket | |
| WO2020093366A1 (en) | Rotary reaction device for iron removal from low-grade nickel laterite ore by means of sulfuric acid pressure leaching | |
| CN216431734U (en) | Rotary anaerobic pyrolysis device for small sealing surface | |
| CN213541216U (en) | Chain pressing wheel for slag remover and slag remover with chain pressing wheel | |
| CN214946361U (en) | Shaft end sealing device of UF4 solid powder penetration type conveying shaft | |
| CN218565447U (en) | Drum-type cold slag machine active sealing device and drum-type cold slag machine | |
| CN219951094U (en) | Spiral discharging device at bottom of pure hydrogen shaft furnace reduction furnace and pure hydrogen shaft furnace | |
| CN211449668U (en) | Material clearing structure of flap valve | |
| CN211715791U (en) | Flap valve seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |