Discharging device of pyrolyzing furnace

Abstract

The utility model discloses a discharging device of a pyrolyzing furnace, which comprises a discharging box provided with a feeding hole and an air inlet pipe, and an air outlet of the air inlet pipe extends into the discharging box; the separation assembly is arranged in the discharging box, the discharging end of the separation assembly extends out of the discharging box, and the separation assembly is used for separating carbon black and pyrolysis gas; and the gas inlet end of the spraying assembly communicates with the gas outlet end of the separation assembly, and the spraying assembly is used for separating pyrolytic oil. The pyrolysis furnace introduces pyrolysis residues and pyrolysis gas into the discharging box, then superheated steam is introduced through the gas inlet pipe, the temperature in the discharging box is higher than 450 DEG C, glass fibers and metal are conveniently separated, meanwhile, gaseous pyrolysis oil in the pyrolysis gas is kept in a gasified state, equipment is prevented from being blocked by the pyrolysis oil, stability is improved, and the service life of the pyrolysis furnace is prolonged. Then carbon black and the like are separated out through the separation assembly, the pyrolytic oil is separated out through the spraying assembly, and separation of the pyrolytic oil is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a pyrolysis furnace discharging device. Background Art

[0002] At present, the discharging device supporting the domestic waste circuit board pyrolysis furnace has the following defects: the pyrolysis gas cools down rapidly after entering the discharging box, and a part of the vaporized pyrolysis oil condenses from the pyrolysis gas and mixes in the pyrolysis slag, causing the carbon black, glass fiber and metal in the pyrolysis slag to stick together and be difficult to separate, resulting in low product quality and the risk of spontaneous combustion during product storage and transportation; the pyrolysis gas continues to cool down in the rear pipelines and equipment, and the vaporized pyrolysis oil continues to condense and mix with the carbon black carried by the pyrolysis gas, causing blockage of the pipelines and equipment, and the pyrolysis system cannot operate continuously, stably and for a long period of time. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a pyrolysis furnace discharge device, which can separate carbon black, glass fiber and metal, while preventing pyrolysis oil from clogging the device and improving stability.

[0004] According to the first aspect of the present invention, the pyrolysis furnace discharge device includes: a discharge box, which is provided with a feed port and an air inlet pipe, and the air outlet end of the air inlet pipe extends into the discharge box; a separation component, which is arranged in the discharge box, and the discharge end of the separation component extends out of the discharge box, and the separation component is used to separate carbon black and pyrolysis gas; a spray component, the air inlet end of the spray component is connected to the air outlet end of the separation component, and the spray component is used to separate pyrolysis oil.

[0005] According to the pyrolysis furnace discharging device of the embodiment of the utility model, at least the following beneficial effects are achieved: the pyrolysis furnace passes pyrolysis slag and pyrolysis gas into the discharging box, and then passes superheated steam through the air inlet pipe to make the temperature in the discharging box higher than 450 degrees, so that the gaseous pyrolysis oil in the pyrolysis gas remains in a gasified state, and at the same time, it is convenient to separate the glass fiber from the metal, and then the pyrolysis gas enters the separation component, and the carbon black and the like brought up are separated by the separation component, and then the pyrolysis gas is passed into the spray component, and the pyrolysis oil is condensed by cooling, and then the remaining non-condensable gas is discharged to achieve the separation of the pyrolysis oil. At the same time, the superheated steam is used to maintain a stable temperature in the equipment, to avoid pyrolysis oil clogging the equipment and to improve stability.

[0006] According to some embodiments of the utility model, the separation assembly includes a first cyclone separator, which is provided with a first air inlet, a first air outlet pipe and a first discharge pipe, the first discharge pipe is arranged at the lower end of the first cyclone separator, and the first discharge pipe extends out of the discharge box, and the first air outlet pipe is arranged at the upper end of the first cyclone separator.

[0007] According to some embodiments of the utility model, the separation assembly includes a second cyclone separator, the second cyclone separator is provided with an air inlet pipe, a second air outlet pipe and a second discharge pipe, the air inlet pipe is connected to the first air outlet pipe, the second air outlet pipe is arranged at the upper end of the second cyclone separator, the second air outlet is connected to the spray assembly, the second discharge pipe is arranged at the lower end of the second cyclone separator, and the second discharge pipe extends out of the discharge box.

[0008] According to some embodiments of the utility model, an expansion joint is provided between the air inlet pipe and the first air outlet pipe, and the air inlet pipe and the first air outlet pipe are butt-jointed via the expansion joint.

[0009] According to some embodiments of the utility model, the pyrolysis furnace discharging device also includes a feed box, a discharge pipe is arranged at the lower end of the feed box, and the discharge pipe is provided with a level meter and a switch valve. Along the vertical direction, the level meter and the switch valve are arranged in sequence, and the level meter is electrically connected to the switch valve.

[0010] According to some embodiments of the present utility model, the spray assembly includes a spray box and a spray unit, the spray box is provided with an air inlet, and the spray unit is arranged above the air inlet.

[0011] According to some embodiments of the present invention, the spray units are provided in two groups, the two groups of spray units are arranged in a vertical direction, and the spray units include at least one spray pipe, and the spray pipe is arranged in a horizontal direction.

[0012] According to some embodiments of the utility model, the spray box is provided with an exhaust port, a first discharge port and a second discharge port, the exhaust port is arranged above the spray pipe, the first discharge port and the second discharge port are both opened on one side of the spray box, and the first discharge port is arranged above the second discharge port.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 It is a schematic diagram of a pyrolysis furnace discharge device according to an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of a separation component in a pyrolysis furnace discharge device according to an embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of a spray assembly in a pyrolysis furnace discharge device according to an embodiment of the utility model.

[0018] Description of reference numerals:

[0019] Feed box 100, feed port 101, air inlet pipe 110, discharge pipe 120, material level meter 121, switch valve 122;

[0020] Separation assembly 200, first cyclone separator 210, first air outlet pipe 211, air inlet 212, first discharge pipe 213, second cyclone separator 220, second air outlet pipe 221, air inlet pipe 222, second discharge pipe 223;

[0021] The spray assembly 300 , the spray box 310 , the exhaust port 311 , the first exhaust port 312 , the second exhaust port 313 , the air inlet 314 , the waste outlet 315 , and the spray pipe 320 . DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference Figure 1 The pyrolysis furnace discharge device of the first aspect of the utility model embodiment includes: a discharge box, which is provided with a feed port 101 and an air inlet pipe 110, and the air outlet end of the air inlet pipe 110 extends into the discharge box; a separation component 200, which is arranged in the discharge box, and the discharge end of the separation component 200 extends out of the discharge box, and the separation component 200 is used to separate carbon black and pyrolysis gas; a spray component 300, the air inlet end of the spray component 300 is connected to the air outlet end of the separation component 200, and the spray component 300 is used to separate pyrolysis oil.

[0027] The pyrolysis furnace introduces the pyrolysis slag and pyrolysis gas into the discharge box, and then introduces superheated steam through the air inlet pipe 110 to make the temperature in the discharge box higher than 450 degrees. After the superheated steam blows through the pyrolysis slag, the temperature of the pyrolysis slag is increased, which is convenient for separating the glass fiber, carbon black and metal. At the same time, the carbon black and gas are mixed together and follow the gas flow to separate the carbon black first; the superheated steam keeps the gaseous pyrolysis oil in the pyrolysis gas in a gasified state, and the mixed gas enters the separation component 200, which is convenient for separating the carbon black in the mixed gas through the separation component 200. The pyrolysis oil is kept in a gasified state during the separation process to prevent the pyrolysis oil from affecting the separation of carbon black and clogging the separation component. The pyrolysis gas is then introduced into the spray component 300 to condense the pyrolysis oil by cooling it down and discharge the remaining non-condensable gas to achieve separation of the pyrolysis oil. Superheated steam is introduced into the equipment to maintain a stable high temperature of 450 degrees inside the equipment to prevent the pyrolysis oil from condensing and clogging the equipment, thereby improving stability and facilitating the separation of glass fiber, carbon black and metal from the pyrolysis slag, which is convenient and efficient.

[0028] Reference Figure 1 and Figure 2It can be understood that the separation assembly 200 includes a first cyclone separator 210, which is provided with a first air inlet, a first air outlet pipe 211 and a first discharge pipe 213. The first discharge pipe 213 is provided at the lower end of the first cyclone separator 210, and the first discharge pipe 213 extends out of the discharge box, and the first outlet pipe 211 is provided at the upper end of the first cyclone separator 210. The mixed gas enters the first cyclone separator 210 through the first air inlet. The first cyclone separator 210 drives the mixed gas to rotate, and utilizes the greater mass of carbon black than gas to separate the carbon black into the first discharge pipe 213 through centrifugal force, and sends it out through the first discharge pipe 213. The remaining gas flows out through the first outlet pipe 211, thereby realizing the preliminary separation of carbon black in the mixed gas.

[0029] Further, see Figure 1 and Figure 2 It can be understood that the separation assembly 200 also includes a second cyclone separator 220, and the second cyclone separator 220 is provided with an air inlet pipe 222, a second air outlet pipe 221 and a second discharge pipe 223. The air inlet pipe 222 is connected to the first air outlet pipe 211, the second air outlet pipe 221 is arranged at the upper end of the second cyclone separator 220, the second air outlet is connected to the spray assembly 300, and the second discharge pipe 223 is arranged at the lower end of the second cyclone separator 220, and the second discharge pipe 223 extends out of the discharge box. After the mixed gas passes through the first cyclone separator 210 to initially separate the carbon black, it enters the second cyclone separator 220, further separates the carbon black in the mixed gas, purifies the gas, and the carbon black is discharged from the second discharge pipe 223.

[0030] The first cyclone separator and the second cyclone separator are both arranged in the discharge box, so that the first cyclone separator and the second cyclone separator are both in the superheated steam to separate the carbon black, so that the gaseous pyrolysis oil remains in a gasified state, thereby improving the carbon black separation effect.

[0031] It is understandable that, referring to Figure 1 and Figure 2 An expansion joint is provided between the air inlet pipe 222 and the first air outlet pipe 211, and the air inlet pipe 222 and the first air outlet pipe 211 are butt-jointed via the expansion joint. By providing an expansion joint between the air inlet pipe 222 and the first air outlet pipe 211, the expansion joint has large axial flexibility, which can compensate for the thermal expansion difference between the air inlet pipe 222 and the first air outlet pipe 211 caused by the different wall temperatures, thereby reducing the risk of decreased air tightness due to thermal deformation between the air inlet pipe 222 and the first air outlet pipe 211.

[0032] It is understandable that, referring to Figure 1, a discharge pipe 120 is provided at the lower end of the feed box 100, and a material level meter 121 and a switch valve 122 are provided in the discharge pipe 120. In the vertical direction, the material level meter 121 and the switch valve 122 are arranged in sequence, and the material level meter 121 is electrically connected to the switch valve 122. After the pyrolysis slag enters the feed box 100, the pyrolysis slag falls into the discharge pipe 120. When the pyrolysis slag accumulates in the discharge pipe 120 and triggers the material level meter 121, the switch valve 122 opens, so that the pyrolysis slag is discharged from the discharge pipe 120, realizing automatic discharge, which is convenient and fast. Similarly, it can also be understood that the material level meter 121 and the switch valve 122 can also be applied to the first discharge pipe 213 and the second discharge pipe 223.

[0033] It is understandable that, referring to Figure 1 and Figure 3 The spray assembly 300 includes a spray box 310 and a spray unit. The spray box 310 is provided with an air inlet 212, and the spray unit is arranged above the air inlet 212. After the gas enters the spray box 310, the gas rises, so that the spray water sprayed by the spray unit cools the gas, condenses and liquefies the gasified pyrolysis oil, and accumulates at the bottom of the spray box 310.

[0034] It is understandable that, referring to Figure 1 and Figure 3 There are two groups of spray units, which are arranged in the vertical direction. The spray units include at least one spray pipe 320, which is arranged in the horizontal direction. When the gas rises, after contacting the first group of spray water, the gaseous pyrolysis oil is initially condensed, and then the gaseous pyrolysis oil continues to rise and contacts the second group of spray water, so that the gaseous pyrolysis oil in the pyrolysis gas is further condensed, thereby improving the condensation efficiency of the pyrolysis oil and fully condensing the gaseous pyrolysis oil in the pyrolysis gas into liquid pyrolysis oil. The spray pipe is arranged horizontally, which can increase the coverage of the spray pipe, avoid insufficient contact between the gaseous pyrolysis oil in the spray box and the spray water, and improve the condensation effect.

[0035] It is understandable that, referring to Figure 1 and Figure 3The spray box 310 is provided with an exhaust port 311, a first discharge port 312 and a second discharge port 313. The exhaust port 311 is arranged above the spray pipe 320. The first discharge port 312 and the second discharge port 313 are both opened on one side of the spray box 310. The first discharge port 312 is arranged above the second discharge port 313. After the non-condensable gas passes through the spray pipe 320, the pyrolysis oil is condensed, and then the non-condensable gas escapes directly from the exhaust port 311. When the pyrolysis gas passes through the spray pipe 320, the temperature is reduced. In addition to the condensation of the gaseous pyrolysis oil, the superheated steam will also condense into condensed water. The pyrolysis oil and condensed water accumulate at the bottom of the spray box 310. Due to the different densities of the pyrolysis oil and the condensed water, the pyrolysis oil will be separated from the condensed water. The condensed water is located in the upper layer of the pyrolysis oil. The condensed water is discharged through the first discharge port 312. After the condensed water is discharged, the second discharge port 313 is opened, and the pyrolysis oil is discharged through the second discharge port 313, so that the pyrolysis oil is separated. While avoiding the pyrolysis oil from clogging the equipment, the decomposition oil can also be separated, improving the practicality and the stability of the equipment operation. In addition, the spray box 310 is also provided with a waste removal port 315, which is arranged on the bottom wall of the spray box 310 to facilitate the discharge of all the remaining pyrolysis oil.

[0036] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A pyrolysis furnace discharge device, characterized in that: include: A discharge box is provided with a feed port and an air inlet pipe, and the air outlet end of the air inlet pipe extends into the discharge box; A separation component is arranged in the discharge box, the discharge end of the separation component extends out of the discharge box, and the separation component is used to separate carbon black and pyrolysis gas; A spray assembly, wherein the air inlet end of the spray assembly is connected to the air outlet end of the separation assembly, and the spray assembly is used to separate the pyrolysis oil.

2. The pyrolysis furnace discharge device according to claim 1, characterized in that: The separation assembly includes a first cyclone separator, which is provided with a first air inlet, a first air outlet pipe and a first discharge pipe. The first discharge pipe is arranged at the lower end of the first cyclone separator and extends out of the discharge box. The first air outlet pipe is arranged at the upper end of the first cyclone separator.

3. The pyrolysis furnace discharge device according to claim 2, characterized in that: The separation assembly includes a second cyclone separator, which is provided with an air inlet pipe, a second air outlet pipe and a second discharge pipe. The air inlet pipe is connected to the first air outlet pipe, the second air outlet pipe is arranged at the upper end of the second cyclone separator, the second air outlet is connected to the spray assembly, the second discharge pipe is arranged at the lower end of the second cyclone separator, and the second discharge pipe extends out of the discharge box.

4. The pyrolysis furnace discharge device according to claim 3, characterized in that: An expansion joint is provided between the air inlet pipe and the first air outlet pipe, and the air inlet pipe and the first air outlet pipe are butt-jointed via the expansion joint.

5. The pyrolysis furnace discharge device according to claim 1, characterized in that: It also includes a feed box, a discharge pipe is arranged at the lower end of the feed box, and the discharge pipe is provided with a level meter and a switch valve. The level meter and the switch valve are arranged in sequence along the vertical direction, and the level meter is electrically connected to the switch valve.

6. The pyrolysis furnace discharge device according to claim 1, characterized in that: The spray assembly comprises a spray box and a spray unit. The spray box is provided with an air inlet, and the spray unit is arranged above the air inlet.

7. The pyrolysis furnace discharge device according to claim 6, characterized in that: The spray units are provided in two groups, and the two groups of the spray units are arranged in a vertical direction. The spray units include at least one spray pipe, and the spray pipe is arranged in a horizontal direction.

8. The pyrolysis furnace discharge device according to claim 7, characterized in that: The spray box is provided with an exhaust port, a first discharge port and a second discharge port. The exhaust port is arranged above the spray pipe. The first discharge port and the second discharge port are both opened on one side of the spray box. The first discharge port is arranged above the second discharge port.

Images