CN209960507U

CN209960507U - Homogenizing device of household garbage pyrolyzing furnace

Info

Publication number: CN209960507U
Application number: CN201920579474.4U
Authority: CN
Inventors: 崔炜
Original assignee: Shaanxi Huacheng Industrial Co Ltd
Current assignee: Shaanxi Huacheng Industrial Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-17
Anticipated expiration: 2029-04-25

Abstract

The utility model relates to a household garbage pyrolysis furnace material equalizer which is arranged on the top of a pyrolysis furnace, the pyrolysis furnace comprises a pyrolysis furnace inner cavity and a pyrolysis furnace outer wall, a furnace top sealing cover is arranged above the pyrolysis furnace inner cavity, one side of the furnace top sealing cover is connected with a screw conveyer, and the other side of the screw conveyer, which is far away from the furnace top sealing cover, is a feed hopper; a support is arranged at the top of the furnace top sealing cover, a belt transmission device is arranged above the support, one side of the belt transmission device is connected with a speed reducer, and a motor is connected below the speed reducer; the furnace top part of the homogenizing main shaft is fixed through an external fixing frame, the furnace middle part is fixed through a furnace internal shaft fixing frame, and the lower end of the homogenizing main shaft is provided with homogenizing blades. The utility model has the advantages of, reasonable in design, enable that the material distributes evenly, stability is high, the fault rate is low, easy maintenance.

Description

Homogenizing device of household garbage pyrolyzing furnace

Technical Field

The utility model belongs to the technical field of domestic waste handles, concretely relates to domestic waste pyrolysis oven homocline ware.

Background

The household garbage is incinerated, so that the household garbage can be harmlessly and thoroughly treated in a high-efficiency, stable, rapid and thorough mode, and therefore, the garbage incineration is widely applied to treating urban household garbage in developed countries and southern regions in China at present as an effective garbage reduction treatment technology. For vast rural areas, due to wide population and geographical distribution of the rural areas, the distribution of the domestic garbage is relatively dispersed, the cost of the garbage incineration treatment operation is increased, an incineration plant needs to be built by taking counties or several counties as units, and the quantity of the domestic garbage can meet the scale requirement of the incineration treatment. The garbage is treated in a centralized way in a large area, and the problems of long garbage treatment and transportation distance, high transportation cost and the like exist, and the operation of treatment facilities is difficult to maintain for a long time.

In order to solve the problem of incineration treatment of primary small household garbage in rural areas, villages and towns, domestic researchers develop a harmless incineration technology for pyrolysis of household garbage. The core equipment of the technology is a pyrolysis furnace and an accessory equipment secondary combustion chamber thereof. The pyrolysis process of the garbage in the pyrolysis furnace is divided into two stages, the reaction in the first stage is positioned at the middle upper part of the pyrolysis gasifier and is in an anoxic state, the working temperature is controlled to be about 800 ℃, and most organic matters in the garbage are pyrolyzed into combustible volatile gas. The second stage reaction is located at the bottom of the pyrolysis gasifier, sufficient oxygen is present, and a small amount of solid combustible remains to be completely combusted. The combustible volatile gas is led out from the upper part of the pyrolysis gasifier and enters a secondary combustion chamber of the accessory equipment for peroxy combustion, the combustion temperature is controlled to be 800-1000 ℃, and finally the aim of harmless incineration is achieved.

The household garbage pyrolysis harmless incineration technology adopts a downdraft process, and the pyrolysis furnace adopts a sleeve type furnace body. The garbage is added from the top of the furnace, the air is sucked from the bottom of the furnace, and the process of pyrolyzing the garbage into combustible gas is completed in the pyrolysis furnace. The garbage in the pyrolysis furnace is divided into three layers from top to bottom, namely a drying layer, a gasification layer and a combustion layer. In order to ensure that the garbage materials in the pyrolysis furnace are uniformly distributed on the plane and prevent gas short circuit, a mechanical material homogenizer is used for uniformly distributing the garbage materials entering the pyrolysis furnace. Most of the material homogenizers used in industrial production are downward feeding type material homogenizers, which have main shaft inserted into the furnace from the furnace bottom and power, speed reducer and transmission set below the pyrolyzing furnace. The installation of lower income formula homocline ware receives the influence of pyrolysis furnace bottom slag discharging device, and the mounted position receives the restriction, and main shaft length is too big, is difficult to fix, and operating stability nature is poor, and life is short, and the homocline effect is poor, and operation and maintenance are also inconvenient.

The existing material homogenizer for a household garbage pyrolysis furnace has the following defects:

1. the design of the material homogenizing blades of the material homogenizing device is unreasonable, the effect of distributing garbage materials is poor, the distribution of the materials in the pyrolysis furnace is uneven, the compactness degree of the materials is uneven, the distribution of airflow in the furnace is uneven, and finally the incineration is incomplete and partial garbage is not combusted.

2. The length of the homogenizing main shaft is too large, and when the homogenizing blades are stressed in operation, the homogenizing main shaft is easy to generate large displacement, so that the stress of a refractory wall in an inner cavity of the pyrolysis furnace is caused, and the service life of the pyrolysis furnace is influenced.

3. Because of the limitation of the installation position, the material homogenizer has few fixed points with the material homogenizing main shaft, the equipment has poor stability and more faults, and the long-period operation cannot be realized.

4. The rotating part of the fixed point of the homogenizing main shaft is greatly influenced by high temperature, and high-temperature ash in the furnace easily enters the rotating friction part, thus easily causing equipment failure.

5. The lower-entering type material homogenizing device is difficult to maintain, particularly when a material homogenizing main shaft or a material homogenizing blade is maintained, a system needs to be stopped, materials in a cleaning pyrolysis furnace are cleaned, devices such as a grate and the like are removed, the maintenance workload is large, and the maintenance time is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems and providing a domestic garbage pyrolysis furnace material equalizer which has the advantages of reasonable design, even material distribution, high stability, low failure rate and convenient maintenance.

In order to achieve the above object, the utility model provides a following technical scheme:

a household garbage pyrolysis furnace material equalizer is arranged at the top of a pyrolysis furnace, the pyrolysis furnace comprises a pyrolysis furnace inner cavity and a pyrolysis furnace outer wall, a furnace top sealing cover is arranged above the pyrolysis furnace inner cavity, one side of the furnace top sealing cover is connected with a spiral conveyor, and the other side of the spiral conveyor, which is far away from the furnace top sealing cover, is a feed hopper; a support is arranged at the top of the furnace top sealing cover, a belt transmission device is arranged above the support, one side of the belt transmission device is connected with a speed reducer, and a motor is connected below the speed reducer; the furnace top part of the homogenizing main shaft is fixed through an external fixing frame, the furnace middle part is fixed through a furnace internal shaft fixing frame, and the lower end of the homogenizing main shaft is provided with homogenizing blades.

Furthermore, the support is used for supporting and fixing the belt transmission device, the material homogenizing main shaft, the outer fixing frame, the speed reducer and the motor.

Further, the motor rotates to drive the speed reducer and the belt transmission device to rotate, and then drives the material homogenizing main shaft to rotate, and the material homogenizing main shaft drives the material homogenizing blades to rotate.

Further, the material homogenizing blades are arranged into three layers.

The homogenizer is characterized by being of an upper-entering type, a main shaft of the homogenizer is inserted into the furnace from the top of the furnace, and a power, speed reduction and transmission device of the homogenizer is placed at the top of the pyrolysis furnace. The main working parts of the material homogenizer comprise: the device comprises a support, a belt transmission device, a material homogenizing main shaft, an external fixing frame, a speed reducer, a motor, a furnace inner shaft fixing frame and material homogenizing blades.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses the homocline blade of homocline adopts three layer construction, and the distribution rubbish material is effectual, can make in the pyrolysis oven material distribution very even, and the closely knit degree of material is even, and the current space of air current is even, and the interior air current distribution of stove is even, creates good pyrolysis and burns the condition.

2. The material homogenizing main shaft is inserted from the top of the furnace, the length is shortened, meanwhile, the fixing points of the main shaft are increased, the material homogenizing main shaft is not easy to generate large displacement when the material homogenizing blade is stressed in operation, the stability of the equipment is enhanced, the failure rate of the equipment is reduced, and the material homogenizing main shaft can operate for a long time.

3. Another advantage of the insertion of the homogenizing spindle from above is: the rotating part of the fixed point of the shaft is prevented from being influenced by high temperature, high-temperature ash in the furnace is prevented from entering the rotating friction part, and equipment faults are reduced.

4. The upper-entering type homogenizer is more convenient to maintain. When the homogenizing device is maintained, the external parts are removed, the furnace top sealing cover is opened, the homogenizing main shaft and the homogenizing blades can be detached, the materials in the pyrolysis furnace do not need to be cleaned, the furnace grate does not need to be removed, and the maintenance is very convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only for the purpose of more clearly illustrating the embodiments of the present invention or the technical solutions in the prior art, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described with reference to the following specific embodiments, which are provided as illustration only and are not intended to limit the present invention.

The household garbage pyrolysis furnace material homogenizer shown in figure 1 mainly comprises the following parts: the device comprises a feed hopper 1, a screw conveyor 2, a furnace top sealing cover 3, a support 4, a belt transmission device 5, a homogenizing main shaft 6, an external fixing frame 7, a speed reducer 8, a motor 9, a furnace internal shaft fixing frame 10, homogenizing blades 11, a pyrolysis furnace inner cavity 12 and a pyrolysis furnace outer wall 13.

Wherein, the material homogenizing device is characterized in that the material homogenizing device is of an upper-entering type, a main shaft of the material homogenizing device is inserted into the furnace from the top of the furnace, and a power, speed reducing and transmission device of the material homogenizing device is arranged at the top of the pyrolysis furnace 14. The main working parts of the material homogenizer comprise: the device comprises a support 4, a belt transmission device 5, a material homogenizing main shaft 6, an external fixing frame 7, a speed reducer 8, a motor 9, a furnace internal shaft fixing frame 10 and material homogenizing blades 11.

The whole homogenizer is fixedly arranged on the top of a pyrolysis furnace 14 through an external fixing frame 7 and a furnace internal shaft fixing frame 10. The homogenizing main shaft 6 is positioned at the central line of the pyrolysis furnace, the lower part of the homogenizing main shaft 6 is connected with homogenizing blades 11, and three layers of homogenizing blades are provided. The support 4 is fixed on the top of the furnace top sealing cover 3 and is used for supporting and fixing the belt transmission device 5, the material homogenizing main shaft 6, the external fixing frame 7, the speed reducer 8 and the motor 9. The upper part of the homogenizing main shaft 6 penetrates through the furnace top sealing cover 3, extends out of an inner cavity 12 of the pyrolysis furnace and is connected with a belt transmission device 5, the right side of the belt transmission device 5 is connected with a speed reducer 8, and a motor 9 is arranged below the speed reducer 8. The weight of the entire apparatus is borne by the supports and foundation below the outer wall 13 of the pyrolysis furnace.

When the pyrolysis furnace operates, firstly, garbage materials are conveyed to the feed hopper 1 and then conveyed into the inner cavity 12 of the pyrolysis furnace by the screw conveyor 2 to form natural accumulation, the feeding is increased, and the accumulation height of the materials reaches the height above the material homogenizing blades 11. The motor 9 is started to rotate, the speed reducer 8 is driven to rotate, the speed reducer 8 drives the homogenizing main shaft 6 to rotate, the homogenizing main shaft 6 drives the homogenizing blades 11 to rotate, garbage materials at a high position are pushed to move to a low concave position, and the garbage materials in the inner cavity 12 of the pyrolysis furnace are uniformly distributed.

The resistance of the solid materials to the material homogenizing main shaft 6 is large in operation, the middle part of the material homogenizing main shaft 6 is supported by the furnace inner shaft fixing frame 10, the upper part of the material homogenizing main shaft is supported by the outer fixing frame 7, and the two parts are fixed, so that the material homogenizing main shaft 6 is prevented from generating too large displacement and vibration when being subjected to external force in operation. The material homogenizing blades 11 keep a certain distance from the fire-resistant wall in the inner cavity 12 of the pyrolysis furnace in design, so that the fire-resistant wall can be prevented from being subjected to overlarge thrust, and the long-term service life of the fire-resistant wall is maintained.

When the material homogenizer is maintained, the material homogenizing main shaft 6 and the material homogenizing blades 11 can be disassembled only by disassembling the components such as the motor 9, the speed reducer 8, the belt transmission device 5, the furnace top sealing cover 3, the bracket 4 and the like, the material in the pyrolysis furnace 14 does not need to be cleaned, the furnace grate does not need to be disassembled, and the maintenance is very convenient.

The patent provides a domestic waste pyrolysis oven homocline ware to solve following technical problem:

first, an upper-type furnace homogenizer is used, in which a homogenizing main shaft 6 is inserted into the furnace from the top thereof, and a motor 9, a speed reducer 8, and a belt drive 5 are provided on the top of a pyrolysis furnace 14. Through overall structure optimization, set up three-layer mixing blade 11 to suitably reduce mixing blade 11 size, make it effectively move in succession, make the rubbish material evenly distributed in the harmless incineration equipment of pyrolysis, the air current distributes evenly, and temperature distribution is even, solves a series of problems because burn inhomogeneous arouse.

Secondly, reduce the length of the main shaft 6 of the homogenizing material, increase the fixed point, guarantee the stability of the operation of the apparatus, avoid unnecessary displacement and vibrations in the operation process, guarantee the long-term operation of the apparatus.

Then, an upper-in type furnace material equalizer is used, and equipment is arranged at a lower temperature part in the pyrolysis furnace 14, so that the problem that the high-temperature ash in the furnace cannot enter a rotary friction part to cause equipment failure due to the fact that the homogenizing main shaft 6 is influenced by high temperature is avoided.

Finally, the problem of difficulty in maintaining the homogenizer is solved, the system is prevented from being stopped during maintenance, the materials in the pyrolysis furnace 14 are cleaned, the maintenance workload is reduced by disassembling, and the maintenance time is shortened.

The present invention is not described in detail in the prior art.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The household garbage pyrolysis furnace material homogenizer is arranged at the top of a pyrolysis furnace (14), and is characterized in that the pyrolysis furnace (14) comprises a pyrolysis furnace inner cavity (12) and a pyrolysis furnace outer wall (13), a furnace top sealing cover (3) is arranged above the pyrolysis furnace inner cavity, one side of the furnace top sealing cover (3) is connected with a spiral conveyor (2), and the other side, far away from the furnace top sealing cover (3), of the spiral conveyor (2) is provided with a feed hopper (1); a support (4) is arranged at the top of the furnace top sealing cover (3), a belt transmission device (5) is arranged above the support (4), one side of the belt transmission device (5) is connected with a speed reducer (8), and a motor (9) is connected below the speed reducer (8); the device is characterized in that a material homogenizing main shaft (6) is arranged at the central line position of the pyrolysis furnace (14), the upper part of the material homogenizing main shaft (6) penetrates through the furnace top sealing cover (3), extends out of an inner cavity (12) of the pyrolysis furnace and is connected with the belt transmission device (5), the furnace top part of the material homogenizing main shaft (6) is fixed through an external fixing frame (7), the furnace top part is fixed through a furnace inner shaft fixing frame (10), and material homogenizing blades (11) are arranged at the lower end of the material homogenizing main shaft (6).

2. The household garbage pyrolysis furnace material homogenizer of claim 1, wherein the support (4) is used for supporting and fixing the belt transmission device (5), the material homogenizing main shaft (6), the external fixing frame (7), the speed reducer (8) and the motor (9).

3. The household garbage pyrolysis furnace material homogenizer according to claim 1, wherein the rotation of the motor (9) drives the speed reducer (8) and the belt transmission device (5) to rotate, and then drives the material homogenizing main shaft (6) to rotate, and the material homogenizing main shaft (6) drives the material homogenizing blades (11) to rotate.

4. The household garbage pyrolysis furnace material homogenizer according to any one of claims 1 to 3, wherein the homogenizing blades (11) are provided in three layers.