CN212511174U

CN212511174U - Medical solid waste incinerator

Info

Publication number: CN212511174U
Application number: CN202021002407.5U
Authority: CN
Inventors: 姚咏歌; 马英; 包姗; 文珊; 陈婷; 杨有余; 何琦
Original assignee: Yonker Environmental Protection Co ltd
Current assignee: Jiangsu yongzhiqing solid waste disposal Co.,Ltd.
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-02-09
Anticipated expiration: 2030-06-04

Abstract

The utility model provides a medical solid waste incinerator. The medical solid waste incinerator comprises a rotating shaft, an incinerator body, and a drying chamber, a combustion chamber and a slag cooling chamber which are sequentially arranged in the incinerator body from top to bottom and are communicated with one another; the upper end of the furnace body is provided with a feed inlet, and the lower end of the furnace body is provided with a slag discharge port; the upper end fixed mounting of cold sediment room has the level setting the pivot, the pivot can drive cold sediment room swing or rotation. Compared with the prior art, the utility model provides a medical solid waste burns burning furnace collection stoving, burning, cold sediment and is a room, and the dry feeding solid waste of residual heat of the sufficient combustion chamber of drying chamber reduces solid waste's moisture content, promotes subsequent incineration efficiency.

Description

Medical solid waste incinerator

Technical Field

The utility model relates to a hazardous waste handles technical field, especially relates to a medical treatment solid waste burns burning furnace.

Background

The infectious medical solid waste contains bacteria and viruses, and the processes of collection, transportation and the like are extremely easy to cause harm to the surrounding environment and human beings. Particularly, since the outbreak of the novel coronavirus epidemic situation, the generation amount of medical wastes in all parts of the country is rapidly increased, the pressure of centralized medical waste disposal facilities in all parts is high, and the propagation risk of the medical wastes in the transfer process is also high. Therefore, the treatment facility which is convenient, rapid, efficient and environment-friendly is needed to treat nearby, and the propagation risk is reduced while harmless and quantitative reduction of medical wastes is realized.

Currently, common treatment techniques for medical solid waste include autoclaving and incineration. The high-temperature cooking sterilization method has a certain trial range and the reduction degree is insufficient; the incineration method can treat various medical wastes, and has the advantages of high volume reduction rate, mature process and reliable effect. The existing medical solid waste incinerator has high treatment efficiency, but has large volume, is inconvenient to transport and assemble, and cannot quickly meet the treatment requirement of sudden infection medical solid waste; some small-sized domestic garbage incinerators are small in size and convenient to transport, but the treatment efficiency is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical solid waste burns burning furnace, the device not only small, the transportation installation of being convenient for, the treatment effeciency is high moreover, realizes medical solid waste's innoxious minimizing demand.

The technical scheme of the utility model is that: a medical solid waste incinerator comprises a rotating shaft, a furnace body, a drying chamber, a combustion chamber and a slag cooling chamber, wherein the drying chamber, the combustion chamber and the slag cooling chamber are sequentially arranged in the furnace body from top to bottom and are communicated with each other; the upper end of the furnace body is provided with a feed inlet, and the lower end of the furnace body is provided with a slag discharge port; the upper end fixed mounting of cold sediment room has the level setting the pivot, the pivot can drive cold sediment room swing or rotation.

In the above-mentioned scheme, collection stoving, burning, cold sediment are a room, and the dry feeding solid waste of residual heat of drying chamber sufficient combustion chamber reduces the moisture content of solid waste, promotes subsequent incineration efficiency. A rotating shaft capable of driving the cold slag chamber to rotate together is designed, so that on one hand, the heated wastes can be rapidly cooled and fall in the cold slag chamber; on the other hand, the oxygen content of the combustion chamber can be increased, which is beneficial to combustion.

Preferably, two opposite sides of the combustion chamber are respectively provided with one rotating shaft, and the two rotating shafts are coaxial.

The two oppositely arranged rotating shafts form the side wall of the combustion chamber, so that multi-surface combustion of waste entering the combustion chamber is realized, and the combustion sufficiency is favorably ensured.

Preferably, the device further comprises a first baffle, a second baffle, a first clapboard and a second clapboard; the first baffle is fixed at the lower end of one rotating shaft and extends towards the slag discharging port, the second baffle is fixed at the lower end of the other rotating shaft and extends towards the slag discharging port, the second baffle is connected to the extending tail ends of the first baffle and the second baffle, the first baffle is positioned above the second baffle, and the first baffle, the second baffle, the first baffle and the second baffle enclose to form the slag cooling chamber; the second partition plate is provided with a blanking hole communicated with the slag discharging port, and the first partition plate is provided with a feeding hole communicated with the combustion chamber.

Preferably, a plurality of filtering holes are formed in the side wall, close to the slag cooling chamber, of the first baffle and/or the second baffle.

According to the scheme, the effectiveness and the sufficiency of waste treatment are guaranteed through the filtering functions of the filtering holes and the blanking holes, and if the standard of final treatment cannot be met, the waste is left in the cold slag chamber through the filtering holes and needs to be incinerated for the second time.

Preferably, the lower end of the furnace body is provided with an ash collecting hopper, the upper end of the ash collecting hopper is communicated with the blanking hole of the cold slag chamber, and the lower end of the ash collecting hopper is the slag discharge port.

The ash collecting hopper has a storage function, and when the storage reaches a certain amount, the ash collecting hopper is cleaned up uniformly at one time.

In order to facilitate the falling of the wastes, the ash collecting hopper is of a frustum structure with a large upper part and a small lower part.

Preferably, the rotating shaft is a hollow shaft, a disc is sleeved in each of hollow cavities at two ends of the rotating shaft, and a plurality of ignition holes are uniformly distributed in each disc.

The hollow shaft structure can make the air flow better, gives the ignition more oxygen.

Preferably, the furnace further comprises an upper bracket and a lower bracket for supporting the rotating shaft in the furnace body.

Preferably, the furnace body is provided with an air outlet pipe and a plurality of air inlet pipes which are communicated with the inside of the furnace body, the air outlet pipe is close to the upper end of the furnace body, the air inlet pipes are positioned between the combustion chamber and the slag discharge port, and the plurality of air inlet pipes are arranged along the periphery of the furnace body.

Preferably, the aperture of the feeding hole is larger than that of the blanking hole; a discharge valve capable of controlling the opening and the closing of the slag discharge port is arranged on the slag discharge port; and a furnace wall made of heat-insulating materials is arranged on the inner side or the outer side of the furnace body.

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

firstly, drying, burning and cold slag are collected into a chamber, the drying chamber can dry the entering solid waste by using the residual heat of the burning chamber, the water content of the solid waste is reduced, and the subsequent incineration efficiency is improved;

secondly, the burned waste enters a slag cooling chamber which can play a buffering role and is convenient for collecting unburned solid waste for secondary burning;

thirdly, the partition plate and the baffle plate of the slag cooling chamber are provided with filter holes, so that not only can solid wastes be filtered, but also air can be conveyed;

fourthly, when the rotating shaft in the furnace body rotates, the contact between the solid waste and oxygen in the combustion chamber can be enlarged, and the incineration efficiency is improved;

and fifthly, the ignition holes are uniformly distributed, so that the combustion point can be positioned in the whole combustion chamber, and the solid waste can be completely combusted.

Drawings

FIG. 1 is a schematic structural view of a medical solid waste incinerator according to the present invention;

FIG. 2 is a schematic view taken along the line A in FIG. 1;

FIG. 3 is a schematic bottom view of FIG. 1;

fig. 4 is a schematic top view of fig. 1.

In the attached drawing, 1-furnace body, 2-feed inlet, 3-upper support, 4-lower support, 5-ignition hole, 6-rotating shaft, 7-drying chamber, 8-combustion chamber, 9-slag cooling chamber, 10-partition plate 1, 11-partition plate 2, 12-air inlet pipe, 13-baffle plate 1, 14-baffle plate 2, 15-air outlet, 16-ash collecting hopper, 17-slag discharge port, 18-disc and 19-filtration hole.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1, the medical solid waste incinerator provided in this embodiment includes a furnace body 1, a feeding port 2, an upper bracket 3, a lower bracket 4, an ignition hole 5, a rotating shaft 6, a drying chamber 7, a combustion chamber 8, a slag cooling chamber 9, a first partition plate 10, a second partition plate 11, an air inlet pipe 12, a first baffle plate 13, a second baffle plate 14, an air outlet pipe 15, an ash collecting hopper 16, and a slag discharge port 17.

And a furnace wall made of heat-insulating materials is arranged on the inner side or the outer side of the furnace body 1. The upper end of the furnace body 1 is provided with a feed inlet 2, and the lower end of the furnace body 1 is provided with a slag discharge port 17. The drying chamber 7, the combustion chamber 8 and the slag cooling chamber 9 are sequentially arranged in the furnace body 1 from the feeding hole 2 downwards. The rotating shaft 6 is rotatably arranged in the combustion chamber 8, the rotating shaft 6 is arranged at two opposite positions of the combustion chamber 8, and the axes of the rotating shaft 6 are horizontal axes and coaxial.

The two rotating shafts 6 are respectively supported in the furnace body 1 through an upper bracket 3 and a lower bracket 4. Under the supporting action of the upper bracket 3 and the lower bracket 4, the rotating shaft 6 can rotate 360 degrees along the horizontal axis thereof. The rotating shaft 6 is a hollow shaft, a disc 18 is sleeved in each hollow cavity at two ends of the rotating shaft 6, and a plurality of ignition holes 5 are uniformly distributed on the disc 18. The driving shaft of the rotating shaft 6 is arranged on a disc 18 close to the side wall of the furnace body 1. The driving source for driving the rotating shaft 6 to rotate is arranged outside the furnace body 1.

First baffle 13 is fixed at the pivot 6 lower extreme on the left side that fig. 1 shows, second baffle 14 is fixed at the pivot 6 lower extreme on the right side that fig. 1 shows, first baffle 13 with second baffle 14 to the end connection that the slag discharge opening 17 extends the second baffle 11, first baffle 10 is located the top of second baffle 11. The first baffle 13, the second baffle 14, the first partition plate 10 and the second partition plate 11 enclose to form the cold slag chamber 9. In order to make the cold slag chamber 9 be a cavity without an opening, enclosing plates are required to be arranged along the front direction and the back direction of fig. 1, and the height dimension of the enclosing plates is the distance between the first partition plate 10 and the second partition plate 11. The enclosing plate can be omitted according to the use requirement, and the swinging of the cold slag chamber 9 of the structure is small-amplitude swinging.

Therefore, the cold slag chamber 9 is fixed on the rotating shaft 6, the rotation of the rotating shaft 6 realizes the swinging or rotation of the cold slag chamber 9 towards the drying chamber 7, the rotation can realize 360 degrees of rotation, and the swinging is generally within the range of 45 degrees. When the slag cooling chamber is not rotated, the slag cooling chamber 9 is positioned above the slag discharge port 17.

The first partition plate 10 is provided with a feeding hole (not shown) communicated with the combustion chamber 8 and the slag cooling chamber 9, and the second partition plate 11 is provided with a blanking hole (not shown) communicated with the slag cooling chamber 9 and the slag discharging port 17. The aperture of the feeding hole is larger than that of the blanking hole, and the blanking hole with small aperture has the filtering function.

The side walls of the first baffle plate 13 and the second baffle plate 14, which are close to the slag cooling chamber 9, are provided with a plurality of filter holes 19 (as shown in fig. 2). The filtering holes can be arranged on any one baffle.

As shown in fig. 3 and 4, the furnace body 1 is provided with an air outlet pipe 15 and a plurality of air inlet pipes 12 which are communicated with the interior of the furnace body 1, the air outlet pipe 15 is arranged near the upper end of the furnace body 1, the air inlet pipes 12 are arranged between the combustion chamber 8 and the slag discharge port 17, and the plurality of air inlet pipes 12 are arranged along the periphery of the furnace body 1.

As shown in fig. 1 and 3, an ash collecting hopper 16 is arranged at the lower end of the furnace body 1, the upper end of the ash collecting hopper 16 is communicated with the blanking hole of the slag cooling chamber 9, and the lower end of the ash collecting hopper 16 is provided with the slag discharging port 17. The ash collecting hopper 16 is of a frustum structure with a large upper part and a small lower part. The slag discharge port 17 is provided with a discharge valve (not shown) capable of controlling the opening and closing thereof.

The working principle of the medical solid waste incinerator is as follows: the medical solid waste enters a drying chamber 7 in the furnace through a feed inlet 2 on the furnace body 1. The solid waste is dried in the drying chamber 7 by utilizing the residual temperature of the combustion chamber 8, and the water content is reduced. The dried solid waste enters the combustion chamber 8 and is ignited and incinerated through the ignition hole 5. At the moment, air enters the furnace through an air inlet pipe 12 to provide oxygen for the combustion chamber 8, smoke generated after incineration is discharged through an air outlet pipe 15, and the smoke is discharged into the atmosphere after subsequent treatment. In order to improve the combustion efficiency, the rotating shaft 6 continuously rotates, and the oxygen content of the combustion chamber 8 is increased.

The burned solid waste enters the cold slag chamber 9 through a feeding hole of the first partition plate 10, the cold slag chamber 9 swings together with the rotation of the rotating shaft 6, and the rotating angle of the rotating shaft 6 is generally within 45 degrees. When the rotating angle of the rotating shaft 6 is 360 degrees, the slag cooling chamber 9 is swung into the drying chamber 7. The process of the cold slag chamber 9 swinging is the process of cooling and filtering.

The filtered waste enters the dust collecting hopper 17 for temporary storage through the blanking hole of the second partition plate 11 of the cold slag chamber 9 and the filtering holes 19 at two sides of the first baffle plate 13 and the second baffle plate 14. Unburned solid waste can not be filtered out and is left in the slag cooling chamber 9 for secondary incineration, and the rotating angle of the rotating shaft 6 can be increased as required.

When the furnace body 1 works, the slag discharge port 17 is sealed, when the ash collecting hopper 17 stores a certain amount and needs to be cleaned regularly, the furnace body 1 is closed, and a discharge valve on the slag discharge port is opened for discharging.

In order to guide the garbage into the combustion chamber 8, a baffle plate (not shown) which is inclined toward the combustion chamber 8 and is retractable may be provided in the drying chamber 7, and the baffle plate may be provided with a hole. The baffle plate may be disposed on each side wall inside the furnace body 1, and may be disposed on one or more side walls thereof. In addition, the solid waste descending speed can be slowed down through the baffle. If the rotating shaft 6 drives the cold slag chamber 9 to rotate 360 degrees, the baffle needs to be fully retracted.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The medical solid waste incinerator is characterized by comprising a rotating shaft (6), an incinerator body (1), and a drying chamber (7), a combustion chamber (8) and a slag cooling chamber (9) which are sequentially arranged in the incinerator body (1) from top to bottom and are communicated with one another; the upper end of the furnace body (1) is provided with a feed inlet (2), and the lower end of the furnace body (1) is provided with a slag discharge port (17); the upper end fixed mounting of cold sediment room (9) is equipped with the level and sets up pivot (6), pivot (6) can drive cold sediment room (9) swing or rotation.

2. The incinerator according to claim 1, wherein said combustion chamber (8) is provided with one of said shafts (6) at each of opposite sides thereof, and said shafts (6) are coaxial.

3. The medical solid waste incinerator according to claim 2, further comprising a first baffle plate (13), a second baffle plate (14), a first partition plate (10) and a second partition plate (11); the first baffle (13) is fixed at the lower end of one rotating shaft (6) and extends towards the slag discharge port (17), the second baffle (14) is fixed at the lower end of the other rotating shaft (6) and extends towards the slag discharge port (17), the second baffle (11) is connected to the extending tail ends of the first baffle (13) and the second baffle (14), the first baffle (10) is positioned above the second baffle (11), and the first baffle (13), the second baffle (14), the first baffle (10) and the second baffle (11) enclose to form the cold slag chamber (9); the second partition plate (11) is provided with a blanking hole communicated with the slag discharge port (17), and the first partition plate (10) is provided with a feeding hole communicated with the combustion chamber (8).

4. The incinerator according to claim 3, wherein said first (13) and/or second (14) baffle plates are provided with filtering holes (19) in the side walls adjacent to said cold slag chamber (9).

5. The medical solid waste incinerator according to claim 3, wherein an ash collecting hopper (16) is provided at the lower end of the furnace body (1), the upper end of the ash collecting hopper (16) is communicated with the blanking hole of the cold slag chamber (9), and the lower end of the ash collecting hopper (16) is the slag discharge port (17).

6. The medical solid waste incinerator according to claim 5, wherein said hopper (16) is a frustum structure having a large top and a small bottom.

7. The incinerator according to any one of claims 1 to 6, wherein said shaft (6) is a hollow shaft, a disc (18) is fitted in each of the hollow cavities at both ends of said shaft (6), and a plurality of ignition holes (5) are uniformly distributed in said disc (18).

8. The medical solid waste incinerator according to any one of claims 1 to 6, further comprising an upper frame (3) and a lower frame (4) for supporting said rotating shaft (6) in said furnace body (1).

9. The medical solid waste incinerator according to any one of claims 1 to 6, wherein said incinerator body (1) is provided with an air outlet pipe (15) and a plurality of air inlet pipes (12) which are communicated with the inside of said incinerator body (1), said air outlet pipe (15) is provided adjacent to the upper end of said incinerator body (1), said air inlet pipes (12) are provided between said combustion chamber (8) and a slag discharge port (17), and said plurality of air inlet pipes (12) are provided along the periphery of said incinerator body (1).

10. The medical solid waste incinerator according to claim 3, wherein the hole diameter of said feeding hole is larger than the hole diameter of said blanking hole; a discharge valve capable of controlling the opening and the closing of the slag discharge port (17) is arranged on the slag discharge port; and a furnace wall made of heat-insulating materials is arranged on the inner side or the outer side of the furnace body (1).