Plasma garbage treatment system

Abstract

The invention provides a plasma garbage treatment system which comprises a vertically extending furnace body, the top end and the bottom end of the furnace body are provided with a feeding hole and a slag discharging hole respectively, and the plasma garbage treatment system is characterized in that a plasma torch, an air supply pipe, a power assembly, a draining cover and an exhaust pipe are sequentially distributed in the furnace body from bottom to top; the power assembly comprises a vertically-extending pressure cylinder, a piston head is connected into the pressure cylinder in a sealed and sliding mode, and the space between the bottom end of the piston head and the pressure cylinder is filled with working medium gas. A bearing hopper and a water storage tank are arranged on the outer side of the pressure cylinder, the bearing hopper is in sealed sliding connection with the outer side wall of the pressure cylinder in the vertical direction, the water storage tank is covered with the draining cover, a drainage structure is arranged on the water storage tank, and the bearing hopper and the drainage structure are both in linkage with the piston head. According to the garbage incinerator, garbage can be dewatered before incineration, and water dewatered from the garbage can be properly treated.

Description

Technical Field

[0001] The invention relates to the technical field of garbage treatment, in particular to a plasma garbage treatment system. Background Art

[0002] Some garbage may have one or more dangerous properties such as corrosiveness, toxicity, flammability, reactivity or infection. Improperly handled garbage may cause serious harm to the environment and human health. With the development of society, the amount of garbage generated each year is gradually increasing. Therefore, safe and effective garbage disposal is of great significance to society. Existing garbage disposal methods include incineration, landfill, physical and chemical treatment, etc. Incineration has become the most commonly used method for garbage disposal due to its strong destructiveness to garbage and wide adaptability.

[0003] The incineration of garbage is usually carried out in a special incinerator. However, the garbage may contain stagnant water. If the garbage containing stagnant water is directly fed into the incinerator, the stagnant water will consume the heat of the flame, resulting in incomplete incineration, thus affecting the treatment effect of the incinerator. Therefore, it is necessary to dehydrate the garbage before incineration to reduce the impact of stagnant water. In addition, since the stagnant water may be mixed with harmful substances, the stagnant water removed from the garbage also needs to be properly treated. However, the existing incinerators lack the technical means to comprehensively solve the above problems. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a plasma waste treatment system, which can not only dehydrate the waste before incineration, but also properly treat the water removed from the waste.

[0005] The present invention adopts the following technical solutions.

[0006] A plasma waste treatment system comprises a vertically extending furnace body, wherein a feeding hole and a slag discharge hole are respectively provided at the top and the bottom of the furnace body, and a plasma torch, an air supply pipe, a power assembly, a drain hood and an exhaust pipe are sequentially arranged in the furnace body from bottom to top;

[0007] The power assembly comprises a vertically extending pressure cylinder, a piston head is sealingly and slidably connected in the pressure cylinder, and a working medium gas is filled between the bottom end of the piston head and the pressure cylinder;

[0008] A load-bearing bucket and a water storage tank are provided on the outside of the pressure cylinder. The load-bearing bucket is sealed and slidably connected with the outer wall of the pressure cylinder in the vertical direction. The drainage cover covers the water storage tank. A drainage structure is provided on the water storage tank. The load-bearing bucket and the drainage structure are both linked to the piston head.

[0009] When the piston head is at the bottom of its stroke, a material discharge channel is formed between the load-bearing bucket and the outer side wall of the pressure rod, and the drainage structure is in a closed state;

[0010] When the piston head is at the top of its stroke, a water-holding cavity is formed between the load-bearing bucket and the outer wall of the pressure cylinder, the drainage structure is in an open state, and the accumulated water in the water storage tank flows into the water-holding cavity through the drainage structure.

[0011] Furthermore, the piston head is integrally connected to a vertically extending piston rod, the top end of the piston rod is integrally connected to a lifting cylinder via a first cross beam, the bottom end of the lifting cylinder is integrally connected to a carrying bucket, and the bottom of the lifting cylinder has a plurality of water inlet holes evenly distributed along the circumference.

[0012] Furthermore, the drainage structure includes a drainage hole opened on the side wall of the water tank, and a valve plate slidably connected to the side wall of the water tank in a vertical direction, the valve plate can open or close the drainage hole, and the valve plate is connected to a first elastic member, which makes the valve plate tend to close the drainage hole.

[0013] Furthermore, a driven shifting block is provided on the valve plate, and an active shifting block adapted to the driven shifting block is integrally connected to the carrying bucket.

[0014] Furthermore, a scraper ring is slidably sleeved on the outer side of the pressure cylinder, and the scraper ring is connected to the carrying bucket as a whole through ribs.

[0015] Furthermore, the bottom end of the drainage cover is integrally connected with a water retaining cover covering the pressure cylinder.

[0016] Furthermore, the drain hood is slidably connected to the furnace body along the vertical direction, and the top end of the piston rod is provided with an impact head acting on the drain hood.

[0017] Furthermore, a grille bucket is provided below the water storage tank, and the grille bucket is integrally connected to the drain cover.

[0018] Furthermore, the inner side wall of the furnace body is slidably connected with a lifting seat in the vertical direction, the lifting seat is integrally connected to the drain cover through a second crossbeam, the bottom end of the lifting seat is integrally connected to the grille bucket, and a second elastic member is connected between the lifting seat and the furnace body.

[0019] The beneficial effects of the present invention are:

[0020] During operation, garbage is put into the furnace from the feeding hole at the top of the furnace body. After entering the furnace body, the garbage rolls down along the drain cover. During this process, the accumulated water in the garbage escapes and flows into the water storage tank below. The dehydrated garbage falls into the inner bottom of the furnace body and burns under the action of the plasma torch and the air supply pipe. At the same time, the heat generated by the burning of garbage is transferred to the pressure cylinder driven by the flue gas. When the piston head is at the bottom of its stroke, the drainage structure is in a closed state. The heat transferred by the flue gas causes the pressure cylinder to heat up, and the working gas in the pressure cylinder expands due to the heat, thereby driving the piston head to move upward. When the piston head moves to the top of its stroke, a water storage chamber is formed between the load bucket and the outer wall of the pressure cylinder. At this time, the drainage structure is opened, and the accumulated water in the water storage tank flows into the water storage chamber through the drainage structure. The accumulated water flowing into the water storage chamber contacts the outer wall of the pressure cylinder, cooling the pressure cylinder, and the working gas in the pressure cylinder contracts due to the cold, thereby driving the piston head to move downward. In the process of the load bucket following the piston head moving downward, the accumulated water in the load bucket continues to absorb the heat of the pressure cylinder and gradually evaporates, so that the harmful substances mixed in the accumulated water gradually deposit. When the piston head moves to the bottom end it has formed, the harmful substances deposited on the carrying bucket will fall into the inner bottom of the furnace through the discharge channel. Finally, due to the loss of cooling by the accumulated water, the working gas in the pressure cylinder will be heated and expanded again, driving the piston head to move upward. In this way, the accumulated water in the garbage can be properly treated in batches. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is one of the overall structural diagrams of this embodiment (the piston head is at the bottom of its stroke at this time);

[0023] Figure 2 for Figure 1 A magnified view of part A;

[0024] Figure 3 This is the second schematic diagram of the overall structure of this embodiment (the piston head is at the top of its stroke at this time);

[0025] Figure 4 for Figure 3 A magnified view of part B;

[0026] Figure 5 is a schematic structural diagram of the power assembly of this embodiment;

[0027] Figure 6 It is a schematic structural diagram of the load-bearing bucket of this embodiment.

[0028] Description of reference numerals:

[0029] Furnace body 1, feed hole 11, slag discharge hole 12, plasma torch 13, air supply pipe 14, exhaust pipe 15, drain cover 16, water shield 17, grille bucket 18,

[0030] Feeding channel 1a, water storage chamber 1b,

[0031] Power assembly 2, pressure cylinder 21, piston head 22, piston rod 23, first cross beam 24, lifting cylinder 25, impact head 26,

[0032] Water inlet 251,

[0033] Loading bucket 3,

[0034] Water tank 4, drainage hole 41,

[0035] Valve plate 51, first elastic member 52,

[0036] The driven shift block 61 and the active shift block 62,

[0037] Scraper ring 71, rib plate 72,

[0038] Lifting seat 81 , second cross beam 82 , second elastic member 83 . DETAILED DESCRIPTION

[0039] The drawings are only used for illustrative purposes and should not be construed as limitations of this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product.

[0040] For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The technical solution of the present invention is further described below in conjunction with the drawings and embodiments.

[0041] As shown in the accompanying drawings, a plasma waste treatment system comprises a vertically extending furnace body 1, a feed hole 11 and a slag discharge hole 12 are respectively provided at the top and bottom of the furnace body 1, and a plasma torch 13, an air supply pipe 14, a power assembly 2, a drain cover 16 and an exhaust pipe 15 are sequentially distributed in the furnace body 1 from bottom to top;

[0042] The power assembly 2 includes a vertically extending pressure cylinder 21, a piston head 22 is sealed and slidably connected inside the pressure cylinder 21, and a working medium gas is filled between the bottom end of the piston head 22 and the pressure cylinder 21;

[0043] A load-bearing bucket 3 and a water storage tank 4 are provided on the outside of the pressure cylinder 21. The load-bearing bucket 3 is sealed and slidably connected with the outer wall of the pressure cylinder 21 in the vertical direction. The drain cover 16 covers the water storage tank 4. A drainage structure is provided on the water storage tank 4. The load-bearing bucket 3 and the drainage structure are both linked with the piston head 22.

[0044] When the piston head 22 is at the bottom of its stroke, a material discharge channel 1a is formed between the carrying bucket 3 and the outer side wall of the pressure rod, and the drainage structure is in a closed state;

[0045] When the piston head 22 is at the top of its stroke, a water chamber 1b is formed between the carrying bucket 3 and the outer wall of the pressure cylinder 21, and the drainage structure is in an open state, and the accumulated water in the water tank 4 flows into the water chamber 1b through the drainage structure.

[0046] During operation, garbage is put into the furnace from the feed hole 11 at the top of the furnace body 1. After entering the furnace body 1, the garbage rolls downward along the drain cover 16. During this process, the accumulated water in the garbage escapes and flows into the water storage tank 4 below. The dehydrated garbage falls into the inner bottom of the furnace body 1 and burns under the action of the plasma torch 13 and the air supply pipe 14. At the same time, the heat generated by the burning of the garbage is transferred to the pressure cylinder 21 driven by the flue gas. When the piston head 22 is at the bottom of its stroke, the drainage structure is in a closed state, and the heat transferred by the flue gas causes the pressure cylinder 21 to heat up. The working fluid gas in the pressure cylinder 21 expands due to the heat, thereby driving the piston head 22 to move upward. When the piston head 22 moves to the top of its stroke, a water storage chamber 1b is formed between the load bucket 3 and the outer wall of the pressure cylinder 21. At this time, the drainage structure is opened, and the accumulated water in the water storage tank 4 flows into the water storage chamber 1b through the drainage structure. The accumulated water flowing into the water storage chamber 1b contacts the outer wall of the pressure cylinder 21, cooling the pressure cylinder 21. The working fluid gas in the pressure cylinder 21 contracts due to the cooling, thereby driving the piston head 22 to move downward. In the process of the carrying bucket 3 following the piston head 22 to move downward, the accumulated water in the carrying bucket 3 continues to absorb the heat from the pressure cylinder 21, thereby gradually evaporating. The harmful substances (such as heavy metals, organic pollutants, salts, etc.) dissolved or suspended in the accumulated water cannot evaporate with the water, so they are gradually deposited in the carrying bucket 3. When the piston head 22 moves to the bottom end formed by it, the harmful substances deposited on the carrying bucket 3 fall into the inner bottom of the furnace body 1 through the discharge channel 1a. Finally, due to the loss of cooling of the accumulated water, the working fluid gas in the pressure cylinder 21 expands again due to the heat, driving the piston head 22 to move upward. In this way, the accumulated water that escapes from the garbage can be properly treated in batches.

[0047] Preferably, the piston head 22 is integrally connected with a vertically extending piston rod 23, the top end of the piston rod 23 is integrally connected with a lifting cylinder 25 through a first cross beam 24, the bottom end of the lifting cylinder 25 is integrally connected with the carrying bucket 3, and the bottom of the lifting cylinder 25 is uniformly distributed with a plurality of water inlet holes 251 along the circumferential direction. When the piston head 22 is at the top of its stroke, the accumulated water flowing out of the drainage structure flows into the water storage chamber 1b through the water inlet holes 251.

[0048] Preferably, the drainage structure includes a drainage hole 41 formed on the side wall of the water tank 4, and a valve plate 51 slidably connected to the side wall of the water tank 4 in a vertical direction, the valve plate 51 can open or close the drainage hole 41, and the valve plate 51 is connected to a first elastic member 52, which makes the valve plate 51 tend to close the drainage hole 41. As an example, the first elastic member 52 is a spring.

[0049] Preferably, a driven block 61 is provided on the valve plate 51, and the carrying bucket 3 is integrally connected with an active block 62 adapted to the driven block 61. In this embodiment, the active block 62 is provided on the lifting cylinder 25. During the upward movement of the piston head 22, the top end of the active block 62 abuts against the bottom end of the driven block 61, thereby driving the valve plate 51 to move upward to open the drain hole 41. After the accumulated water in the water storage tank 4 flows into the carrying bucket 3, the accumulated water will cool the pressure cylinder 21, causing the working fluid gas in the pressure cylinder 21 to contract due to the cold, thereby driving the piston head 22 to move downward. In this way, the valve plate 51 moves downward under the action of the first elastic member 52, thereby closing the drain hole 41.

[0050] In order to prevent the harmful substances in the accumulated water from evaporating from the carrying bucket 3 and accumulating on the outer wall of the pressure cylinder 21, preferably, a scraper ring 71 is slidably sleeved on the outer side of the pressure cylinder 21, and the scraper ring 71 is integrally connected to the carrying bucket 3 through a rib plate 72. When the piston head 22 drives the carrying bucket 3 to move up and down in the vertical direction, the scraper ring 71 will scratch the outer wall of the pressure cylinder 21, thereby scraping off the harmful substances attached thereto.

[0051] In order to prevent the accumulated water from the garbage from falling into the pressure cylinder 21. Preferably, the bottom end of the drain cover 16 is integrally connected with a water shield 17 covering the pressure cylinder 21.

[0052] Preferably, the drain hood 16 is slidably connected to the furnace body 1 in the vertical direction, and the top of the piston rod 23 is provided with an impact head 26 acting on the drain hood 16. When the piston head 22 moves to the top of its stroke, the impact head 26 will hit the water shield 17, causing the drain hood 16 to vibrate in the vertical direction. In this way, in the process of the garbage rolling down along the water shield 17, the vibrating drain hood 16 not only helps to destroy the water film on the surface of the garbage, so that the accumulated water can be separated from the garbage faster, but also helps the garbage to be dispersed on the drain hood 16, increasing the contact area between the garbage and the drain hood 16, and at the same time helps to reduce the blockage of the drain hood 16, thereby improving the dehydration efficiency.

[0053] Preferably, a grille bucket 18 is provided below the water storage tank 4, and the grille bucket 18 is integrally connected to the drain cover 16. It is understandable that after the garbage falls from the drain cover 16, it will fall into the grille bucket 18. When the drain cover 16 is hit by the impact head 26 and vibrates, this vibration will be transmitted to the grille bucket 18, causing the grille bucket 18 to vibrate as well. In this way, the garbage will bounce while rolling down along the grille bucket 18, so that it can be fully dispersed. This dispersion increases the contact area between the garbage and the flue gas in the furnace body 1, promotes the evaporation of water on the garbage, improves the dryness of the garbage, and thus helps to enhance the incineration efficiency of the garbage.

[0054] Preferably, the inner side wall of the furnace body 1 is slidably connected with a lifting seat 81 in the vertical direction, the lifting seat 81 is integrally connected to the drain cover 16 through the second crossbeam 82, the bottom end of the lifting seat 81 is integrally connected to the grille bucket 18, and a second elastic member 83 is connected between the lifting seat 81 and the furnace body 1. As an example, the second elastic member 83 is a spring.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A plasma waste treatment system, comprising a vertically extending furnace body, wherein a feed hole and a slag discharge hole are respectively provided at the top and bottom of the furnace body. It is characterized in that The furnace body is provided with a plasma torch, an air supply pipe, a power assembly, a drain hood and an exhaust pipe in sequence from bottom to top; The power assembly comprises a vertically extending pressure cylinder, a piston head is sealingly and slidably connected in the pressure cylinder, and a working medium gas is filled between the bottom end of the piston head and the pressure cylinder; A load-bearing bucket and a water storage tank are provided on the outside of the pressure cylinder. The load-bearing bucket is sealed and slidably connected with the outer wall of the pressure cylinder in the vertical direction. The drainage cover covers the water storage tank. A drainage structure is provided on the water storage tank. The load-bearing bucket and the drainage structure are both linked to the piston head. When the piston head is at the bottom of its stroke, a material discharge channel is formed between the load-bearing bucket and the outer side wall of the pressure rod, and the drainage structure is in a closed state; When the piston head is at the top of its stroke, a water-holding cavity is formed between the load-bearing bucket and the outer wall of the pressure cylinder, the drainage structure is in an open state, and the accumulated water in the water storage tank flows into the water-holding cavity through the drainage structure.

2. A plasma waste treatment system according to claim 1, It is characterized in that The piston head is integrally connected to a vertically extending piston rod, the top end of the piston rod is integrally connected to a lifting cylinder via a first cross beam, the bottom end of the lifting cylinder is integrally connected to a carrying bucket, and the bottom of the lifting cylinder has a plurality of water inlet holes uniformly distributed along the circumferential direction.

3. A plasma waste treatment system according to claim 1, It is characterized in that The drainage structure includes a drainage hole opened on the side wall of the water tank, and a valve plate slidably connected to the side wall of the water tank in the vertical direction, the valve plate can open or close the drainage hole, and the valve plate is connected to a first elastic member, which makes the valve plate tend to close the drainage hole.

4. A plasma waste treatment system according to claim 3, It is characterized in that The valve plate is provided with a driven shifting block, and the carrying bucket is integrally connected with an active shifting block adapted to the driven shifting block.

5. A plasma waste treatment system according to claim 1, It is characterized in that A scraper ring is slidably sleeved on the outer side of the pressure cylinder, and the scraper ring is connected to the carrying bucket through a rib plate to form a whole.

6. A plasma waste treatment system according to claim 1, It is characterized in that The bottom end of the drainage cover is integrally connected with a water retaining cover covering the pressure cylinder.

7. A plasma waste treatment system according to claim 1, It is characterized in that The drain hood is slidably connected to the furnace body along the vertical direction, and the top end of the piston rod is provided with an impact head acting on the drain hood.

8. A plasma waste treatment system according to claim 7, It is characterized in that A grille bucket is provided below the water storage tank, and the grille bucket is integrally connected with the drain cover.

9. A plasma waste treatment system according to claim 8, It is characterized in that The inner side wall of the furnace body is slidably connected with a lifting seat in the vertical direction. The lifting seat is integrally connected to the drain cover through a second crossbeam. The bottom end of the lifting seat is integrally connected to the grille bucket. A second elastic member is connected between the lifting seat and the furnace body.

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