Solid waste incineration device
Technical Field
The utility model relates to a rotary kiln, in particular to solid useless incineration device.
Background
The rotary kiln is a rotary calcining kiln, and belongs to building material production equipment. The rotary kiln is a kiln which is widely used for calcining small-particle materials, is suitable for being applied to enterprises producing steel, calcium carbide and nonferrous metals, can directly calcine 10-40mm of fine-grained raw material limestone or dolomite, and has the characteristics of good raw material adaptability, large yield, uniform product, high activity, stable production operation and the like.
In the prior art, a rotary kiln comprises a preheating section and a calcining section, wherein the axis of the preheating section and the axis of the calcining section are overlapped with each other, heat usually enters the calcining section through an air inlet and then enters the preheating section, and the heat of the calcining section can be shunted by the direct-blowing rotary kiln, so that heat loss in the calcining section is caused (the temperature in the calcining section is regulated to be controlled within a range of 1000-1300 ℃), the heat close to the air inlet is stronger, the heat is weaker at a position far away from the air inlet, namely the heat enters the calcining section and is not uniformly heated, the heat utilization rate of the rotary kiln is low, and the calcining efficiency is influenced; in addition, the flue gas after calcination is mixed with carbon dioxide generated by limestone decomposition, which is not beneficial to the recovery and utilization of limestone calcination by-products.
In view of this, the present inventors have conducted extensive studies on the above problems, and have developed the present invention.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, improve the solid useless device that burns of calcining the effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a solid waste incineration device comprises a rotary kiln, wherein the rotary kiln comprises a preheating section, a calcining section and a transition section for connecting the preheating section and the calcining section, the preheating section and the calcining section are both cylindrical cylinders with openings at two ends, a feed inlet is arranged at the end part of the preheating section, the feed inlet is arranged at one end of the preheating section far away from the transition section, the end part of the calcining section is provided with a discharge outlet, the discharge port is arranged at one end of the calcining section far away from the transition section, the transition section is a cylindrical furnace shaft with a hollow cavity inside, the side wall of the furnace shaft is respectively provided with a first interface and a second interface, the first interface is arranged above the second interface, the preheating section is communicated with the inner cavity of the furnace shaft through the first connector, and the calcining section is communicated with the inner cavity of the furnace shaft through the second connector.
As an optimal mode of the utility model, the axis of preheating section is 3-5 with the contained angle of water flat line, just the central point of feed inlet is higher than the central point of first interface, the axis of calcining the section is 3-5 with the contained angle of water flat line, just the central point of second interface is higher than the central point of discharge gate.
As a preferable mode of the present invention, the axis of the first interface and the axis of the second interface are on the same plane.
As a preferable mode of the present invention, the axis of the first interface and the axis of the second interface are not on the same plane.
As an optimal mode of the utility model, be provided with the arc stock guide in the shaft, the stock guide include first stock guide and with the second stock guide that first stock guide is connected, the one end of first stock guide with the section of preheating is connected, the one end of second stock guide with the section of calcining is connected.
As an optimal mode of the utility model, the top of the furnace shaft is provided with a feed opening and an exhaust port.
As the utility model discloses an optimal mode still is in including setting up the kiln head ash bin and the setting of the feed inlet outer end of preheating section are in calcine the section the kiln tail ash bin of discharge gate outer end, the kiln head ash bin with the preheating section communicates with each other, the kiln tail ash bin with the calcining section communicates with each other.
As an optimal mode of the utility model, be provided with drying device and supply the material storehouse that solid material put in the kiln head ash bin, be provided with the air-supply line on the lateral wall of kiln head ash bin be provided with on the air-supply line be used for with material in the material storehouse is insufflated the air-blower of calcination section.
As an optimal mode of the utility model, the bottom of kiln tail ash box is provided with the air-cooled mucking machine, be provided with the through-hole that the heat supply got into on the lateral wall of kiln tail ash box, the outside of kiln tail ash box be provided with the slag bin that the air-cooled mucking machine is linked together.
The utility model separates the preheating section and the calcining section into two spaces by adopting the furnace shaft, so that the preheating section and the calcining section have height difference, the heat is not excessively discharged into the preheating section, the loss of a large amount of heat in the calcining section is avoided, the heat utilization rate is high, and the material calcining efficiency is effectively enhanced; the utility model discloses can adopt and connect preheating section and calcination section on first interface and second interface rotationally, can be with preheating section and calcination section setting and be the mode that non-detachable connects, also can be with preheating section and calcination section setting and be the mode that detachable connects, when preheating section and calcination section seal respectively and non-detachable connects on first interface and second interface, make preheating section and calcination section constitute mutually supporting between the different directions, reduced the occupation of land space of whole equipment; when preheating section and calcination section sealed detachable ground connection respectively on first interface and second interface, the two segmentations of detachable can be transported respectively to the building site scene, carry out the field assembly, and then carry out solid useless burning, solved the difficult department above the transportation, make things convenient for the problem of equipment transition installation production simultaneously. The utility model discloses overall structure goes up the simple reasonable in design, and the practicality is very high, is applicable to extensive fixed and portable field treatment's production and uses.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a side view of a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of the preheating section, the preheating support device and the preheating driving device of the present invention;
fig. 4 is a schematic structural view of a second embodiment of the present invention;
in the figure:
the device comprises a preheating section 1, a kiln head ash box 11, a riding wheel groove 111, an air inlet pipe 112, a drying device 12, a material bin 13, a preheating driving device 2, a main driver 23, a main motor 231, a main reducer 232, an auxiliary driver 24, an auxiliary motor 241, an electromagnetic valve 2411, an auxiliary reducer 242, a frequency converter 25, a water pump 26, a water tank 27, a cold discharge 28, a calcining section 3, a kiln tail ash box 31, a through hole 311, an air-cooled slag extractor 32, a calcining driving device 4, a furnace shaft 5, a first interface 51, a first guide plate 551, a second guide plate 552, a second interface 52, an exhaust port 53, a feeding port 54, a preheating supporting device 6, a supporting base 61, a riding wheel 62 and a calcining supporting device 7.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows: as shown in fig. 1-3
A solid waste incineration device comprises a rotary kiln, the rotary kiln comprises a preheating section 1, a calcining section 3 and a transition section for connecting the preheating section 1 and the calcining section 3, the preheating section 1 and the calcining section 3 are both cylindrical cylinders with two open ends, a feed inlet (not shown in the figure) is arranged at the end part of the preheating section 1, the feed inlet is arranged at one end of the preheating section 1 far away from the transition section, the end part of the calcining section 3 is provided with a discharge outlet (not shown in the figure), the discharge port is arranged at one end of the calcining section 3, which is far away from the transition section, the transition section is a cylindrical furnace shaft 5, the inner part of the cylindrical furnace shaft 5 is a cavity, the side wall of the furnace shaft 5 is respectively provided with a first connector 51 and a second connector 52, the first connector 51 is arranged above the second connector 52, the preheating section 1 is communicated with the inner cavity of the furnace shaft 5 through the first connector 51, and the calcining section 3 is communicated with the inner cavity of the furnace shaft 5 through the second connector 52.
The preheating section 1 and the calcining section 3 can be rotatably connected to the first connector 51 and the second connector 52; the preheating section 1 and the calcining section 3 can be arranged in a non-detachable connection mode, the preheating section 1 and the calcining section 3 can also be arranged in a detachable connection mode, and when the preheating section and the calcining section are respectively connected to the first interface and the second interface in a sealing and non-detachable connection mode, the preheating section and the calcining section are mutually matched in different directions, so that the occupied space of the whole equipment is reduced; when the preheating section 1 and the calcining section 3 are respectively connected to the first interface 51 and the second interface 52 in a sealing and detachable manner, the detachable two-section type can be respectively transported to a construction site for on-site assembly, and then solid waste incineration is carried out, thereby solving the difficulty in transportation. The utility model discloses overall structure goes up the simple reasonable in design, and the practicality is very high, is applicable to extensive fixed and portable field treatment's production and uses.
Further, the included angle between the axis of the preheating section 1 and the horizontal line is 3-5 degrees, the central point of the feeding port is higher than the central point of the first connector 51, the included angle between the axis of the calcining section 3 and the horizontal line is 3-5 degrees, and the central point of the second connector 52 is higher than the central point of the discharging port.
Preferably, the axis of the first port 51 and the axis of the second port 52 are on the same plane. The preheating section 1 and the calcining section 3 respectively form a certain included angle with the horizontal plane, so that the materials can stay in the preheating section 1 or the calcining section 3 for a long time to fully utilize waste heat of the waste gas for drying and preheating, and meanwhile, the materials to be treated can be conveniently overturned and move forwards in the inclined preheating section 1 and the calcining section 3, and the materials are prevented from flowing back.
Further, an arc-shaped material guide plate is arranged in the furnace shaft 5, the material guide plate comprises a first material guide plate 551 and a second material guide plate 552 connected with the first material guide plate 551, one end of the first material guide plate 551 is connected with one end of the preheating section 1 far away from the feeding hole, one end of the second material guide plate 552 is connected with one end of the calcining section 3 far away from the discharging hole, the preheating section 1, the first material guide plate 551, the second material guide plate 552 and the calcining section 3 form a relatively closed path, and materials can be prevented from falling into an inner cavity of the furnace shaft 5 from any place. The utility model discloses an adopt the dead weight of the usable material of big arc stock guide to carry out the pay-off, avoid preheating section 1's material to fall into the inner chamber of well 5 and have not the way to fall into calcining section 3 in to avoid the material to take place the siltation at well 5 and block up, need not often to shut down and clear up.
Further, the top of the furnace shaft 5 is provided with an exhaust port 53 and a feeding port 54, and degradation materials are injected into the feeding port 54, so that the degradation materials can chemically react with harmful substances in the fuel, and the degradation materials are discharged after treatment, thereby greatly improving the operating environment and preventing environmental pollution; the calcined flue gas and carbon dioxide generated by the decomposition of limestone are discharged through the exhaust port 53 and collected uniformly, which is beneficial to the recovery and utilization of carbon dioxide which is a byproduct of limestone calcination in the subsequent treatment; the utility model discloses overall structure goes up simple reasonable in design, and the practicality is very high to the cost of manufacture is low, is applicable to large-scale production and uses.
Further, the utility model discloses still including setting up at preheating section 1 the kiln head ash box 11 of feed inlet outer end is calcining section 3 with the setting kiln tail ash box 31 of discharge gate outer end, kiln head ash box 11 communicates with each other with preheating section 1, kiln tail ash box 31 communicates with each other with calcining section 3.
A drying device 12 and a material bin 13 for putting solid materials are arranged in the kiln head ash box 11, an air inlet pipe 112 is arranged on the side wall of the kiln head ash box 11, and an air blower (not shown in the figure) for blowing the materials in the material bin 13 into the calcining section 3 is arranged on the air inlet pipe 112.
The bottom of the kiln tail ash box 31 is provided with an air-cooled slag extractor 32, the side wall of the kiln tail ash box 31 is provided with a through hole 311 for heat to enter, and the outer side of the kiln tail ash box 31 is provided with a slag bin (not shown in the figure) communicated with the air-cooled slag extractor 32.
Further, the utility model discloses still include preheating support device 6 and calcination strutting arrangement 7, preheating support device 6 is the same with calcination strutting arrangement 7 structure, and below only with preheating strutting arrangement 6 to do further detailed description, preheating strutting arrangement 6 is including supporting base 61 and rotationally setting up two riding wheels 62 on supporting base 61, and two riding wheels 62 are used for supporting preheating section 1.
Further, the utility model also includes a preheating driving device 2 and a calcining driving device 4, the preheating driving device 2 and the calcining driving device 4 have the same structure, only the preheating driving device 2 is described in further detail below, as shown in fig. 3, the preheating driving device 2 includes a main driver 23, an auxiliary driver 24, a frequency converter 25, a water pump 26, a water tank 27 and a cold row 28, the preheating section 1 is rotatably disposed on the preheating support device 6, the outer wall of the preheating section 1 is provided with an annular riding wheel groove 111 corresponding to each riding wheel 62, the riding wheels 62 roll along the riding wheel grooves 111, the main driver 23 includes a main motor 231 and a main reducer 232, the main motor 231 drives the preheating section 11 to rotate through the main reducer 232, the auxiliary driver 24 includes an auxiliary motor 241 and an auxiliary reducer 242, the auxiliary motor 241 drives the preheating section 1 to rotate through the auxiliary reducer 242, the outer wall of the preheating section 1 is provided with a rotary gear ring 112, output gears of the main speed reducer 232 and the auxiliary speed reducer 242 are meshed with the rotary gear ring 212 of the preheating section 1, the frequency converter 25 is connected with the main motor 231 and the auxiliary motor 241 through lines, motor shells of the main motor 231 and the auxiliary motor 241 are respectively provided with a hollow layer, the water pump 26, the hollow layer, the cold air exhaust 28 and the water tank 27 are sequentially communicated into a circulating water path through pipelines, and a water inlet pipeline of the hollow layer of the auxiliary motor 241 is provided with an electromagnetic valve 2411.
The utility model discloses a theory of operation is:
the preheating section 1, the preheating driving device 2 and the preheating supporting device 6 form a preheating part, and the calcining section 3, the calcining driving device 4 and the calcining supporting device 7 form a calcining part. Before production, a heat source is started to preheat the interior of the preheating section 1, after the temperature meets the production process requirement, the solid material bin 13 feeds materials into the preheating section 1, the preheating section 1 rotates, the materials move to the first connector 51 under the action of rotation and inclination of the preheating section 1, then the materials enter the calcining section 3 through the first guide plate 551 and the second guide plate 552, and the materials are continuously lifted in the rotating process so as to fill the space of the whole preheating section 1 and the calcining section 3; after the production is carried out for a period of time, the heat released in the reaction can meet the production requirement, and the starting heat source can be closed; the reduced finished product material enters an air-cooled slag extractor 32, and is discharged after being sealed, cooled and stabilized.
Through adopting aforementioned design, the beneficial effects of the utility model are that: the preheating section 1 and the calcining section 3 can be rotatably connected to the first connector 51 and the second connector 52; can be with preheating section 1 and calcining section 3 setting be the mode that can not dismantle the connection, also can set preheating section 1 and calcining section 3 to the mode that can dismantle the connection, seal detachable ground connection respectively on first interface 51 and second interface 52 when heating section 1 and calcining section 3, the two segmentations of detachable can be transported to the building site respectively, carry out the field assembly, and then burn admittedly, have solved the difficult department above the transportation. The utility model has simple and reasonable design on the whole structure and high practicability, and is suitable for the production and use of large-scale fixed and mobile field treatment; by injecting the degradation material into the feeding port 54, the degradation material can chemically react with harmful substances in the fuel, and the degradation material is discharged after reaching standards after treatment, so that the operation environment is greatly improved, and the environmental pollution is prevented; the calcined flue gas and carbon dioxide generated by the decomposition of limestone are discharged through the exhaust port 53 and collected uniformly, which is beneficial to the recovery and utilization of carbon dioxide which is a byproduct of limestone calcination in the subsequent treatment; the utility model discloses overall structure goes up simple reasonable in design, and the practicality is very high to the cost of manufacture is low, is applicable to large-scale production and uses.
Example two: as shown in fig. 3
The utility model relates to a solid useless incineration device, this embodiment and embodiment one's difference lie in that, the axis of first interface 51 and the axis of second interface 52 are not on the coplanar.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.