Solid waste continuous feeding device and cracking equipment

Abstract

The utility model relates to the relevant technical field of cracking, in particular to a solid waste continuous feeding device and cracking equipment, the solid waste continuous feeding device comprises a feeding mechanism, the feeding mechanism comprises a first spiral feeding unit and a second spiral feeding unit, a negative pressure feeding unit is arranged between the discharging end of the first spiral feeding unit and the feeding end of the second spiral feeding unit. By means of pneumatic conveying, various solid wastes such as rubber powder, rubber particles, small rubber blocks, plastic particles and carbon black can be conveyed, the problem of dust overflow can be effectively solved, meanwhile, limitation of the specific installation position of the conveying structure can be reduced by means of pneumatic conveying, and meanwhile the purpose of multi-position feeding can be achieved according to actual requirements. And the process arrangement is flexible and convenient, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field related to cracking, in particular to a solid waste continuous feeding device and cracking equipment. Background Art

[0002] Pyrolysis is a reaction process in which a substance decomposes when heated. Many inorganic and organic substances will undergo decomposition reactions when heated to a certain degree. In the past, the pyrolysis process did not involve catalysts, and other energy, such as reactions caused by ultraviolet radiation. In order to improve the efficiency of pyrolysis, increase the yield of pyrolysis products, and prepare products that are not easy to prepare by conventional pyrolysis, more and more research has been conducted on adding catalysts to the pyrolysis process for catalytic pyrolysis. Some catalytic pyrolysis processes such as adding catalysts such as CaO and MgO to the pyrolysis of plastics have been used in industrial production.

[0003] Generally, feeding equipment is used to assist in conveying solid waste such as tires and plastics into the cracking furnace. Therefore, a spiral auger is currently used for feeding. However, due to the structural characteristics of the cracking furnace, the spiral auger needs to be erected to the same height as the cracking furnace when feeding. Therefore, a belt conveyor is mostly used to feed the spiral auger. The use of a belt conveyor is prone to dust scattering in the air, and each cracking furnace needs to be equipped with a belt conveyor, which occupies a large space. Utility Model Content

[0004] The purpose of the utility model is to provide a solid waste continuous feeding device and a cracking device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A solid waste continuous feeding device comprises a feeding mechanism, wherein the feeding mechanism comprises a first spiral feeding unit and a second spiral feeding unit, and a negative pressure feeding unit is arranged between the discharge end of the first spiral feeding unit and the feed end of the second spiral feeding unit.

[0007] The solid waste continuous feeding device as described above: the negative pressure feeding unit comprises:

[0008] The first cyclone separator is formed with a feed position and a discharge position, the discharge position is directly opposite to the feed end of the second spiral feeding unit, and the feed position is connected to the discharge end of the first spiral feeding unit through a connecting pipe;

[0009] A negative pressure fan is installed on one side of the first cyclone separator and is connected to the inner side of the first cyclone separator.

[0010] The solid waste continuous feeding device as described above: the connecting pipe comprises:

[0011] A spiral flow channel is connected to the first cyclone separator, and a feed pipe is installed at one end of the spiral flow channel away from the first cyclone separator. The feed pipe is connected to the discharge end of the first spiral feeding unit through a buffer pipe.

[0012] The solid waste continuous feeding device as described above: a rotary feeder for controlling the conduction or blocking of the discharge position is provided at the discharge position of the first cyclone separator.

[0013] A cracking device, comprising:

[0014] The solid waste continuous feeding device as described above;

[0015] a cracking furnace in communication with a solid waste continuous feed device;

[0016] And a slag discharge mechanism for discharging and processing the slag produced in the cracking furnace.

[0017] The solid waste continuous feeding device as described above: the slag discharging mechanism comprises:

[0018] Multiple water-cooled augers connected end to end in sequence to form a water-cooled slag conveying unit;

[0019] A second cyclone separator connected to the discharge end of the water-cooled slag feeding unit;

[0020] A pulse dust removal bag communicated with the second cyclone separator and an induced draft fan communicated with the pulse dust removal bag.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model adopts pneumatic conveying (based on negative pressure feeding unit), which can convey various solid wastes such as rubber powder, rubber particles, small rubber blocks, plastic particles and carbon black, and can effectively eliminate the problem of dust overflow. At the same time, the use of pneumatic conveying can reduce the specific installation position restrictions of the conveying structure. At the same time, it can also achieve the purpose of feeding at multiple locations according to actual needs, meet the simultaneous use of multiple cracking equipment, and the process layout is flexible and convenient, and the scope of application is wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of the cracking equipment.

[0023] Figure 2 This is a schematic diagram of the structure of a continuous feeding device for solid waste.

[0024] Figure 3 This is a schematic diagram of the structure of the solid waste continuous feeding device from another angle.

[0025] Figure 4 It is a structural schematic diagram of the slag discharge mechanism.

[0026] In the figure:

[0027] 1-feeding mechanism, 101-first bracket, 102-second bracket, 103-first spiral feeding unit, 104-first hopper, 105-buffer pipe, 106-feed pipe, 107-first cyclone separator, 108-negative pressure fan, 109-spiral flow channel, 110-second spiral feeding unit, 111-rotary feeder, 112-second hopper;

[0028] 2-cracking furnace;

[0029] 3-slag discharging mechanism, 301-water-cooled auger, 302-second cyclone separator, 303-pulse dust removal bag, 304-induced draft fan. DETAILED DESCRIPTION

[0030] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0031] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0032] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific embodiments below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0033] See also Figures 1 to 3 In an embodiment of the utility model, a solid waste continuous feeding device includes a feeding mechanism 1, wherein the feeding mechanism 1 includes a first spiral feeding unit 103 and a second spiral feeding unit 110, and a negative pressure feeding unit is arranged between the discharge end of the first spiral feeding unit 103 and the feeding end of the second spiral feeding unit 110. In this embodiment, the first spiral feeding unit 103 is used to perform quantitative primary conveying of solid waste, and then the solid waste is conveyed to the second spiral feeding unit 110 through the negative pressure feeding unit, and then conveyed to the cracking furnace 2 through the second spiral feeding unit 110.

[0034] This embodiment adopts pneumatic conveying (based on negative pressure feeding unit), which can convey various solid wastes such as rubber powder, rubber particles, small rubber blocks, plastic particles and carbon black, and can effectively eliminate the problem of dust overflow. At the same time, the use of pneumatic conveying can reduce the specific installation position restrictions of the conveying structure. At the same time, it can also achieve the purpose of feeding at multiple locations according to actual needs, meet the simultaneous use of multiple cracking equipment, and the process layout is flexible and convenient, with a wide range of applications.

[0035] Among them, see Figure 2 and Figure 3 The first spiral feeding unit 103 is installed on the first bracket 101 to achieve effective support for the first spiral feeding unit 103 , and the second spiral feeding unit 110 is installed on the second bracket 102 to also achieve effective support for the second spiral feeding unit 110 .

[0036] It is also necessary to explain that the present embodiment describes the first spiral feeding unit 103, which includes a feeding chamber, an auger is rotatably installed on the inner side of the feeding chamber, and the auger is driven to rotate by a motor installed on the first bracket 101, and a first hopper 104 connected to the inner side is installed on the upper end of the feeding chamber, and the discharge port of the feeding chamber is connected to the negative pressure feeding unit.

[0037] The second spiral feeding unit 110 has a substantially identical structure to the first spiral feeding unit 103, except that a second hopper 112 is mounted on the feeding cavity of the second spiral feeding unit 110, the second hopper 112 is arranged in a conical structure, and the discharge port of the feeding cavity of the second spiral feeding unit 110 is connected to the cracking furnace.

[0038] Further, the negative pressure feeding unit includes a first cyclone separator 107, which is formed with a feed position and a discharge position, and the discharge position is opposite to the feed end of the second spiral feeding unit 110, and the feed position is connected to the discharge end of the first spiral feeding unit 103 through a connecting pipe, and also includes a negative pressure fan 108, which is installed on one side of the first cyclone separator 107 and is connected to the inner side of the first cyclone separator 107, and the connecting pipe includes a spiral flow channel 109 connected to the first cyclone separator 107, and a feed pipe 106 is installed at one end of the spiral flow channel 109 away from the first cyclone separator 107, and the feed pipe 106 is connected to the discharge end of the first spiral feeding unit 103 through a buffer pipe 105.

[0039] In addition, please refer to Figure 2 ,by Figure 2The viewing angle defines that the end of the buffer tube 105 close to the first spiral feeding unit 103 is the left end, and an air inlet hole (not shown in the figure) is formed at the left end of the buffer tube 105, and a control valve is provided at a position of the buffer tube 105 close to the air inlet hole. The control valve is used to control the flux of the air inlet hole. During use, the problem of material blockage in the feed pipe 106 can be eliminated by the set air inlet hole. In detail, if there is a lot of material in the feeding chamber of the first spiral feeding unit 103, it may cause material accumulation at the unloading place of the feeding chamber, causing blockage at the feeding place of the feed pipe 106 (that is, the negative pressure in the feed pipe 106 is less than the friction between the materials at the unloading place of the feeding chamber). At this time, the air intake amount of the air inlet hole on the buffer tube 105 can be adjusted to eliminate the above-mentioned disadvantages.

[0040] When feeding is needed, the negative pressure fan 108 works to generate negative pressure in the first cyclone separator 107, and the material in the first spiral feeding unit 103 enters the spiral flow channel 109 through the buffer pipe 105 and the feed pipe 106. The material entering the spiral flow channel 109 enters the first cyclone separator 107 along the tangential direction of the inner wall of the first cyclone separator 107. Due to the action of negative pressure, a two-phase flow of material and gas is formed. The two-phase flow in the first cyclone separator 107 separates most of the material from the gas due to the centrifugal force and gravity, and a small amount of material and gas enter the dust collector, and the powder and gas are separated by the action of the filter bag, and the clean air is discharged to the outside through the exhaust duct of the negative pressure fan 108, thereby realizing the feeding action.

[0041] Preferably, a rotary feeder 111 for controlling the conduction or blocking of the discharge position is provided at the discharge position of the first cyclone separator 107. Of course, in the specific implementation process, the rotary feeder 111 can also be replaced by other valves, as long as the discharge control requirements of the first cyclone separator 107 are met. This embodiment does not make any specific limitations on this.

[0042] As another embodiment of the present invention, please refer to Figure 1 , and also proposes a cracking device, comprising:

[0043] The solid waste continuous feeding device as described above;

[0044] a cracking furnace 2 in communication with a solid waste continuous feeding device;

[0045] And a slag discharge mechanism 3 for discharging and treating the slag material produced in the cracking furnace 2.

[0046] Among them, see Figure 4 , the slag discharging mechanism 3 comprises:

[0047] A plurality of water-cooled augers 301 connected end to end in sequence to form a water-cooled slag conveying unit;

[0048] A second cyclone separator 302 connected to the discharge end of the water-cooled slag conveying unit;

[0049] A pulse dust bag 303 communicated with the second cyclone separator 302 and an induced draft fan 304 communicated with the pulse dust bag 303 .

[0050] In this embodiment, when the carbon black is discharged from the slag, it is first cooled by the water-cooled auger 301, which can reduce the use requirements of the pulse dust removal bag 303, extend the service life, and reduce the operating cost.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A solid waste continuous feeding device, comprising a feeding mechanism (1), characterized in that: The feeding mechanism (1) comprises a first spiral feeding unit (103) and a second spiral feeding unit (110), and a negative pressure feeding unit is arranged between the discharge end of the first spiral feeding unit (103) and the feed end of the second spiral feeding unit (110).

2. A solid waste continuous feeding device according to claim 1, characterized in that: The negative pressure feeding unit comprises: The first cyclone separator (107) is formed with a feed position and a discharge position, the discharge position is directly opposite to the feed end of the second spiral feeding unit (110), and the feed position is connected to the discharge end of the first spiral feeding unit (103) through a connecting pipe; A negative pressure fan (108) is installed on one side of the first cyclone separator (107) and is connected to the inner side of the first cyclone separator (107).

3. A solid waste continuous feeding device according to claim 2, characterized in that: The connecting pipe comprises: A spiral flow channel (109) is connected to the first cyclone separator (107), and a feed pipe (106) is installed at one end of the spiral flow channel (109) away from the first cyclone separator (107), and the feed pipe (106) is connected to the discharge end of the first spiral feeding unit (103) through a buffer pipe (105).

4. A solid waste continuous feeding device according to claim 2, characterized in that: A rotary feeder (111) is provided at the discharge position of the first cyclone separator (107) for controlling the conduction or blocking of the discharge position.

5. A cracking device, characterized in that: include: The solid waste continuous feeding device according to any one of claims 1 to 4; A cracking furnace (2) connected to a solid waste continuous feeding device; and a slag discharging mechanism (3) for discharging and treating slag material generated in the cracking furnace (2).

6. A cracking device according to claim 5, characterized in that: The slag discharging mechanism (3) comprises: A plurality of water-cooling augers (301) connected end to end in sequence to form a water-cooling slag conveying unit; a second cyclone separator (302) connected to the discharge end of the water-cooled slag conveying unit; A pulse dust removal bag (303) connected to the second cyclone separator (302) and an induced draft fan (304) connected to the pulse dust removal bag (303).

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