Pyrolysis device for treating coke lumps and its working method

Abstract

The present application discloses a pyrolysis device for treating coke lumps, which is used for pyrolyzing raw materials and can prevent the raw materials from coking and remove coke lumps. The coke lump treatment type pyrolysis device includes a pyrolysis kiln and a coke lump treatment mechanism. The pyrolysis kiln includes a kiln body, the kiln body includes a kiln head, a kiln tail and a pyrolysis chamber extending between the kiln head and the kiln tail. The kiln body has a pyrolysis cavity. The coke lump treatment mechanism includes a connecting shaft and a plurality of coke lump treatment components. The connecting shaft is installed on the kiln body. The coke lump treatment component includes a scraping member and a gas jetting member. The gas jetting member has a communication channel and at least one gas jetting port communicating with the communication channel. The gas jetting port communicates with the pyrolysis cavity. The gas jetting member is used for jetting gas into the pyrolysis chamber. The scraping member is connected to the connecting shaft. The pyrolysis chamber and the connecting shaft rotate relative to each other so that the scraping member scrapes the coke lumps on the inner wall of the pyrolysis chamber.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary kilns, and particularly to a pyrolysis device for treating coke lumps and its working method. Background Art

[0002] Rotary kilns are often used in the production of refractory materials and are devices that change the properties of raw materials through high-temperature calcination. Since the rotary kiln has a certain inclination angle with the horizontal plane, the kiln head is high and the kiln tail is low. Therefore, when in use, the materials in the kiln are affected by the gravity and the rotation of the kiln cylinder, and will roll along the circumferential direction and move axially from the high end to the low end to accelerate the calcination of the materials and enable the calcined materials to automatically discharge.

[0003] However, in the actual operation process, there is a situation where some materials coke, which not only restricts the flow of materials in the rotary kiln, but also reduces the loading capacity of the rotary kiln and its production capacity. There are various factors leading to coking on the kiln wall. Among them, it may be due to excessive input of materials, resulting in insufficient calcination of the materials, causing some materials to adhere to the surface of the kiln wall to form coking. Or it may be due to the characteristics of the materials themselves that coking occurs. For example, substances such as colloid and asphalt in oil sludge are extremely prone to coking and agglomeration under high-temperature conditions, and long-chain organic compounds, aromatic rings, condensed rings, and heterocyclic organic compounds in industrial waste salts often undergo polymerization reactions under high-temperature conditions to form glue blocks adhering to the kiln wall. In addition, if the manual control of the feeding time and the calcination time is not carried out according to the regulations, coking may also be caused.

[0004] When the existing rotary kiln deals with the coking problem, it uses a mechanical tooth claw to scrape the inner wall of the kiln to remove the coke lumps. However, since the coke lumps near the wall surface of the rotary kiln are harder than those far from the wall surface and have a greater adhesion to the wall surface, it is impossible to completely clean the coke lumps only by means of mechanical tooth claws. Summary of the Invention

[0005] One advantage of the present invention is to provide a pyrolysis device for treating coke lumps and its working method. The present invention can automatically scrape the coke lumps generated by the pyrolysis of raw materials and prevent the raw materials from coking while pyrolyzing the raw materials, so as to achieve the integration of cleaning and prevention. Compared with the existing pyrolysis kiln, it can effectively reduce the coking amount of raw materials, fundamentally solve the problem of raw material coking, and greatly improve the coking situation.

[0006] One advantage of the present invention is to provide a pyrolysis device for treating coke lumps and its working method. The present invention can turn the raw materials to accelerate the pyrolysis of the raw materials, and use the centrifugal force and the gravity of the raw materials themselves to reduce the adhesion strength of the coke lumps, thereby reducing the difficulty of coke lump removal.

[0007] One advantage of the present invention is to provide a pyrolysis device for treating coke lumps and its working method. The present invention can use the gravity of the raw material itself and mechanical derivation to conduct double feeding of the raw material, ensuring that the raw material can be discharged smoothly.

[0008] One advantage of the present invention is to provide a pyrolysis device for treating coke lumps and its working method. The present invention conducts crushing and screening on the raw material to ensure that the particle size of the raw material to be pyrolyzed meets the requirements, avoiding the extension of the pyrolysis time due to the too large particle size of the raw material, and making the pyrolysis efficiency of the raw material higher.

[0009] One advantage of the present invention is to provide a pyrolysis device for treating coke lumps and its working method. The present invention can convey and cool the solid substances generated by the pyrolysis of the raw material. The solid substances are tumbled during the conveying process to improve the cooling efficiency of the solid substances.

[0010] To achieve at least one of the above advantages of the present invention, the present invention provides a pyrolysis device for treating coke lumps, which is used for pyrolyzing raw materials and can prevent the raw materials from coking and remove coke lumps. The pyrolysis device for treating coke lumps includes:

[0011] A pyrolysis kiln, the pyrolysis kiln includes a kiln body, the kiln body includes a kiln head, a kiln tail and a pyrolysis chamber extending between the kiln head and the kiln tail, and the kiln head, the kiln tail and the pyrolysis chamber form a pyrolysis cavity;

[0012] A treatment mechanism, the coke lump treatment mechanism includes a connecting shaft and a plurality of coke lump treatment components. The connecting shaft is installed on the kiln body. The coke lump treatment component includes a scraping member and a jetting member. The jetting member is arranged in the pyrolysis cavity. The jetting member has a communication channel and at least one jetting port communicating with the communication channel. The jetting port communicates with the pyrolysis cavity. The jetting member is used to inject gas into the pyrolysis chamber. The scraping member is connected to the connecting shaft, and there is a gap between the scraping member and the inner wall of the pyrolysis chamber. The pyrolysis chamber and the connecting shaft rotate relative to each other so that the scraping member scrapes the coke lumps on the inner wall of the pyrolysis chamber.

[0013] According to an embodiment of the present invention, the kiln body also has a feed port, a solid material outlet and a gas material outlet communicating with the pyrolysis cavity. The solid material outlet is formed at the kiln tail, and the gas material outlet is formed at the kiln head. The solid material outlet is used to discharge the solid substances generated after the pyrolysis of the raw material, and the gas material outlet is used to discharge the gas substances generated after the pyrolysis of the raw material. The kiln body has a high end part and a low end part. The kiln head is arranged at the high end part, and the kiln tail is arranged at the low end part. The kiln body is inclined at a predetermined angle to guide the raw material in the pyrolysis cavity to move from the high end part to the kiln tail at the low end part.

[0014] According to an embodiment of the present invention, the jet member is installed between the connecting shaft and the scraping member. The connecting shaft has a gas transmission channel and an inlet communicating with the gas transmission channel. The communicating channel communicates with the gas transmission channel. The inlet is used for introducing gas into the gas transmission channel and delivering the gas to the jet member through the gas transmission channel.

[0015] According to an embodiment of the present invention, one end of the jet member away from the connecting shaft bends towards the inner wall of the pyrolysis chamber and extends towards the direction of the solid material outlet, and the jet orifice faces the inner wall of the pyrolysis chamber.

[0016] According to an embodiment of the present invention, the side of the scraping member away from the connecting shaft is parallel to the axis of the pyrolysis chamber and extends towards the direction of the solid material outlet, so that the scraping member can remove the coke lumps while pushing the raw material to move towards the direction of the solid material outlet.

[0017] According to an embodiment of the present invention, the kiln body further has a material cleaning port formed at the kiln head. The material cleaning port is used for collecting the raw material that enters the kiln head from the feed port but does not enter the pyrolysis chamber and the solid material that is driven by the gas substance to flow towards the gas-solid material outlet and falls due to being blocked by the inner wall of the kiln head. The pyrolysis kiln further includes at least two first sealing members, and the two first sealing members are respectively installed at the kiln head and the kiln tail.

[0018] According to an embodiment of the present invention, the coke block treatment type pyrolysis device further includes a pretreatment mechanism. The pretreatment mechanism includes a first feeding member having a first feeding port and a first discharging port. The first feeding port is used for feeding materials, and the first discharging port is connected to the feeding port through a pipeline. The first feeding member is arranged to supply materials to the kiln body. The pretreatment mechanism includes a crushing component installed in the pipeline between the first feeding member and the kiln body. The crushing component has a second feeding port and a second discharging port. The second feeding port is connected to the first discharging port. The crushing component is used for crushing the raw materials discharged from the first discharging port. The pretreatment mechanism includes a screening component installed in the pipeline between the crushing component and the kiln body. The screening component includes a screening main body and a screening member. The screening main body has a third feeding port, a third discharging port, and a screening cavity. Both the third feeding port and the third discharging port are connected to the screening cavity, and the screening cavity is located between the third feeding port and the third discharging port. The screening member is installed in the screening cavity. The screening main body further has a screening external discharging port connected to the first feeding port. The screening external discharging port is used for discharging the unqualified raw materials screened by the screening member. The screening external discharging port is arranged above the screening member so that the unqualified raw materials screened by the screening member can be introduced into the first feeding member. The pretreatment mechanism further includes a second feeding member installed in the pipeline between the screening component and the kiln body. The second feeding member has a fourth feeding port and a fourth discharging port. The fourth feeding port is connected to the third discharging port. The fourth discharging port is connected to the feeding port through a pipeline. The second feeding member is arranged to receive the qualified raw materials discharged from the third discharging port and guide the qualified materials screened by the screening component into the feeding port. The pretreatment mechanism includes a conveying member installed in the pipeline between the second feeding member and the kiln body. The conveying member includes a conveying main body and a conveying component. The conveying main body has a fifth feeding port, a fifth discharging port, and a conveying cavity extending from the fifth feeding port to the fifth discharging port. Both the fifth feeding port and the fifth discharging port are communicated with the conveying cavity. The conveying component is installed in the conveying cavity. The conveying main body is located in the pipeline between the second feeding member and the kiln body. The fifth feeding port is connected to the fourth discharging port, and the fifth discharging port is connected to the feeding port. The conveying component is arranged to drive the raw materials input from the fifth feeding port to pass through the fifth discharging port and enter the pyrolysis cavity.

[0019] According to an embodiment of the present invention, the coke block treatment type pyrolysis device further includes a solid material treatment mechanism, which is configured to collect the solid substances generated by the pyrolysis of the raw materials discharged from the solid material outlet. The solid material treatment mechanism includes a cold feeding member, and the cold feeding member includes a cold slag main body, a cooling assembly and a rolling and conveying assembly. The cold slag main body has a material receiving port, a discharging port and a cooling cavity extending from the material receiving port to the discharging port. Both the material receiving port and the discharging port are communicated with the cooling cavity, and the material receiving port is communicated with the solid material outlet. The cooling assembly has at least one water inlet, at least one water outlet and a water cavity. Both the water inlet and the water outlet are communicated with the water cavity. The cold slag main body is installed in the water cavity, and the water inlet is communicated with an external water supply mechanism. The rolling and conveying assembly is installed in the cooling cavity, and is configured to transfer the solid substances entering from the material receiving port to the discharging port. Meanwhile, the solid substances are stirred by the rolling and conveying assembly, so that the heat of the solid substances is absorbed by the water in the water cavity. The solid material treatment mechanism further includes a collection chamber, which has a material inlet and a collection cavity communicated with the material inlet. The material inlet is communicated with the discharging port, and the collection chamber is configured to receive the solid substances discharged from the discharging port.

[0020] To achieve at least one of the above advantages of the present invention, the present invention provides a working method of the coke block treatment type pyrolysis device, including the following steps:

[0021] (A) The gas is discharged from the jet orifice into the pyrolysis cavity through the communication channel to prevent coking on the inner wall of the pyrolysis chamber;

[0022] (B) The pyrolysis chamber and the connecting shaft rotate relative to each other, so that the scraping member located in the pyrolysis cavity scrapes the coke blocks generated by the pyrolysis of the raw materials on the inner wall of the pyrolysis chamber.

[0023] According to an embodiment of the present invention, the working method of the coke block treatment type pyrolysis device includes the following steps:

[0024] (a) The raw materials are introduced into the crushing component by the first feeding member. The crushing component performs crushing treatment on the raw materials and introduces them into the screening component. The screening component screens the raw materials, and the unqualified raw materials are introduced into the first feeding member, and the crushing operation is repeatedly performed on the unqualified raw materials in this way;

[0025] (b) The qualified raw materials screened out are introduced into the second feeding member, and are transferred to the conveying member through the second feeding member, and then the conveying member transfers the raw materials to the pyrolysis cavity to achieve feeding.

[0026] (c) The solid substances generated after the pyrolysis of the raw materials are discharged from the solid material outlet, and the cold feeding member cools the solid materials and conveys them to the collection chamber. Description of the Drawings

[0027] Figure 1 The structural schematic diagram of the coke block treatment type pyrolysis device of the present invention is shown.

[0028] Figure 2 The partial structural sectional view of the coke block treatment type pyrolysis device of the present invention is shown.

[0029] Figure 3 The partial structural perspective view of the coke block treatment type pyrolysis device of the present invention is shown.

[0030] Figure 4 The structural sectional view of the pretreatment mechanism of the coke block treatment type pyrolysis device of the present invention is shown.

[0031] Figure 5 The partial structural sectional view of the solid material treatment mechanism of the coke block treatment type pyrolysis device of the present invention is shown. Detailed Description of the Invention

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present invention can be applied to other embodiments, variations, improvements, equivalent solutions, and other technical solutions without departing from the spirit and scope of the present invention.

[0033] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0034] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of one element can be one, and in other embodiments, the number of this element can be multiple. The term "a" should not be construed as limiting the quantity.

[0035] Reference Figures 1 to 2, a coke block processing pyrolysis device according to a preferred embodiment of the present invention will be described in detail below. The coke block processing pyrolysis device is used for pyrolyzing raw materials and can prevent the raw materials from coking and remove coke blocks.

[0036] The coke block processing pyrolysis device includes a pyrolysis kiln 10. The pyrolysis kiln 10 includes a kiln body 11. The kiln body 11 includes a kiln head 111, a kiln tail 112, and a pyrolysis chamber 113 extending between the kiln head 111 and the kiln tail 112. The kiln head 111, the kiln tail 112, and the pyrolysis chamber 113 form a pyrolysis cavity 1101. The kiln body 11 also has a feed inlet 1102, a solid material outlet 1103, and a gas material outlet 1104 communicating with the pyrolysis cavity 1101. The solid material outlet 1103 is used to discharge the solid substances generated after pyrolysis of the raw materials, and the gas material outlet 1104 is used to discharge the gas substances generated after pyrolysis of the raw materials.

[0037] The solid material outlet 1103 is formed at the kiln tail 112, and the gas material outlet 1104 is formed at the kiln head 111.

[0038] The kiln body 11 has a high end and a low end. The kiln head 111 is arranged at the high end, and the kiln tail 112 is arranged at the low end. The kiln body 11 is inclined at a predetermined angle to guide the raw materials in the pyrolysis cavity 1101 to move from the high end to the kiln tail 112 located at the low end, so that the solid substances generated after pyrolysis of the raw materials are discharged from the solid material outlet 1103.

[0039] Preferably, the inclination angle of the kiln body 11 is 0.5° - 5°.

[0040] It is worth mentioning that the gas material outlet 1104 and the solid material outlet 1103 are respectively formed at the high end and the low end. This design can effectively avoid the solid substances discharged from the solid material outlet 1103 being affected by the airflow of the gas substances discharged from the gas material outlet 1104, so that some solid substances are discharged from the gas material outlet 1104 together with the gas substances, thereby increasing the purity of the gas substances discharged from the gas material outlet 1104 and facilitating the recovery of the gas substances.

[0041] The coke block processing pyrolysis device includes a coke block processing mechanism 20. The coke block processing mechanism 20 is installed on the kiln body 11. The coke block processing mechanism 20 is used to remove the coke blocks formed on the inner wall of the pyrolysis chamber 113 due to pyrolysis of the raw materials and prevent coking.

[0042] The coke block processing mechanism 20 includes a connecting shaft 21 and a plurality of coke block processing components 22. The coke block processing components 22 are arranged in the pyrolysis chamber 1101 and mounted on the connecting shaft 21. The connecting shaft 21 is mounted on the kiln body 11, and the pyrolysis chamber 113 and the connecting shaft 21 rotate relative to each other, so that the coke block processing components 22 can comprehensively prevent coking on the inner wall of the pyrolysis chamber 113 and remove coke blocks.

[0043] In a preferred embodiment, the center line of the connecting shaft 21 coincides with the center line of the pyrolysis chamber 113. The connecting shaft 21 is rotatably and sealingly connected between the kiln head 111 and the kiln tail 112, and the pyrolysis chamber 113 extends between the kiln head 111 and the kiln tail 112 in a rotating manner. When both the pyrolysis chamber 113 and the connecting shaft 21 rotate, the coke blocks attached to the inner wall of the pyrolysis chamber 113 tend to break away from the inner wall of the pyrolysis chamber 113 under the action of centrifugal force and gravity, so as to reduce the adhesion strength of the coke blocks, and further reduce the difficulty of the coke block processing components 22 in cleaning the inner wall of the pyrolysis chamber 113. At the same time, the connecting shaft 21 drives the coke block processing components 22 to rotate in the pyrolysis chamber 1101, so as to comprehensively remove the coke blocks attached to the inner wall of the pyrolysis chamber 113 and comprehensively perform coking prevention operations on the inner wall of the pyrolysis chamber 113.

[0044] In a preferred embodiment, the pyrolysis chamber 113 and the connecting shaft 21 rotate in the same direction, and there is a predetermined rotational speed difference between the pyrolysis chamber 113 and the connecting shaft 21. In this way, the pyrolysis chamber 113 and the connecting shaft 21 can achieve a synergistic effect, so that the coke block processing components 22 connected to the connecting shaft 21 can comprehensively and effectively remove the coke blocks on the inner wall of the pyrolysis chamber 113 and comprehensively prevent coking on the inner wall of the pyrolysis chamber 113.

[0045] Alternatively, the pyrolysis chamber 113 and the connecting shaft 21 rotate in opposite directions. The same purpose can be achieved, which will not be elaborated here. In addition, when the pyrolysis chamber 113 and the connecting shaft 21 rotate, the coke blocks attached to the inner wall of the pyrolysis chamber 113 and the coke block processing components 22 connected to the connecting shaft 21 hinder each other, so that the interaction force between the coke block processing components 22 and the coke blocks increases, thereby increasing the cleaning force of the coke block processing components 22 on the coke blocks.

[0046] In a modified embodiment, the central axis of the connecting shaft 21 coincides with the central axis of the pyrolysis chamber 113. Both ends of the connecting shaft 21 are fixedly connected to the kiln head 111 and the kiln tail 112 respectively, and the pyrolysis chamber 113 extends rotatably between the kiln head 111 and the kiln tail 112. When the pyrolysis chamber 113 rotates, the coke lumps attached to the inner wall of the pyrolysis chamber 113 gradually approach the coke lump treatment assembly 22. However, the coke lumps are blocked by the coke lump treatment assembly 22 and cannot move together with the pyrolysis chamber 113, so that the coke lumps are detached from the inner wall of the pyrolysis chamber 113, thereby completely removing the coke lumps. At the same time, the coke lump treatment assembly 22 performs a comprehensive anti-coking treatment on the inner wall of the pyrolysis chamber 113.

[0047] In another embodiment, the central axis of the connecting shaft 21 deviates from the central axis of the pyrolysis chamber 113. Both ends of the connecting shaft 21 are fixedly connected to the kiln head 111 and the kiln tail 112 respectively, and the pyrolysis chamber 113 extends rotatably between the kiln head 111 and the kiln tail 112. At this time, the pyrolysis chamber 113 rotates so that different positions of the inner wall of the pyrolysis chamber 113 come into contact with the coke lump treatment assembly 22 connected to the connecting shaft 21. Similarly, the purpose of the coke lump treatment assembly 22 connected to the connecting shaft 21 for comprehensively removing coke from the inner wall of the pyrolysis chamber 113 and comprehensively preventing coking on the inner wall of the pyrolysis chamber 113 can be achieved, and details are not described herein again.

[0048] Those skilled in the art can understand that when the pyrolysis chamber 113 is fixedly arranged and the connecting shaft 21 is rotatably and sealingly connected between the kiln head 111 and the kiln tail 112 and coincides with the central axis of the pyrolysis chamber 113, the purpose of the coke lump treatment assembly 22 connected to the connecting shaft 21 for comprehensively removing coke from the inner wall of the pyrolysis chamber 113 and comprehensively preventing coking on the inner wall of the pyrolysis chamber 113 can also be achieved, and details are not described herein again.

[0049] To enable those skilled in the art to understand this embodiment, in at least one of the following embodiments and the corresponding drawings, the central axis of the connecting shaft 21 coincides with the central axis of the pyrolysis chamber 113, the connecting shaft 21 is rotatably and sealingly connected to the kiln body 11, and the pyrolysis chamber 113 extends rotatably between the kiln head 111 and the kiln tail 112 as an example for elaboration. Those skilled in the art should know that this is not a limitation to the present invention.

[0050] Refer to Figures 2 to 3 , the connecting shaft 21 has a gas transmission channel 2101 and an inlet 2102 communicating with the gas transmission channel 2101. The inlet 2102 is used to introduce gas into the gas transmission channel 2101, and the gas is conveyed from the gas transmission channel 2101 to the coke lump treatment assembly 22.

[0051] Preferably, the gas includes high-temperature flue gas and ultra-high-temperature superheated steam. The high-temperature flue gas can provide the temperature required for pyrolysis of the raw material in the pyrolysis chamber 113, and the ultra-high-temperature superheated steam can prevent the raw material from coking and promote the pyrolysis of the raw material. The coke block treatment assembly 22 includes a scraping member 221 and a jetting member 222. The scraping member 221 is connected to the connecting shaft 21, and the scraping member 221 is used to scrape the coke blocks on the inner wall of the pyrolysis chamber 113.

[0052] The jetting member 222 is disposed in the pyrolysis cavity 1101 and mounted on the connecting shaft 21. The jetting member 222 has a communication channel 22201 and at least one jetting port 22202 communicating with the communication channel 22201. The communication channel 22201 communicates with the gas transmission channel 2101, and the jetting port 22202 communicates with the pyrolysis cavity 1101, so that the gas transmission channel 2101 can introduce gas into the communication channel 22201 and eject it from the jetting port 22202 to jet gas to the raw material in the pyrolysis chamber 113 to prevent the raw material from coking.

[0053] It is worth mentioning that a plurality of the scraping members 221 can simultaneously remove the coke blocks on the inner wall of the pyrolysis chamber 113, thereby increasing the cleaning efficiency.

[0054] It should be noted that while the scraping member 221 scrapes the coke blocks formed by the raw material on the inner wall of the pyrolysis chamber 113, the scraping member 221 stirs the raw material, so that the raw material is in full contact with the gas in the pyrolysis cavity 1101, thereby improving the pyrolysis efficiency of the raw material.

[0055] One end of the jetting member 222 away from the connecting shaft 21 is bent and extends in the direction of the solid material outlet 1103, and the jetting port 22202 faces the inner wall of the pyrolysis chamber 113, so that the gas ejected from the jetting port 22202 can spray onto the inner wall of the pyrolysis chamber 113 and the raw material accumulated in the pyrolysis chamber 113 with the maximum impact force to promote the pyrolysis of the raw material in the pyrolysis chamber 113 and prevent the raw material from coking on the inner wall of the pyrolysis chamber 113.

[0056] In a preferred embodiment, ten jetting members 222 are provided. The ten jetting members 222 are spaced apart in the pyrolysis chamber 113, so that the gas ejected from the jetting members 222 can comprehensively spray the raw material in the pyrolysis chamber 113, thereby accelerating the pyrolysis speed of the raw material and reducing the probability of coking on the inner wall of the pyrolysis chamber 113.

[0057] It is worth mentioning that, taking the direction of axial projection of the kiln body 11 from bottom to top as a reference, the jet member 222 forms 16 jet ports 22202. Taking the radial cross-section of the kiln body 11 as a reference, the jet member 222 forms 7 jet ports 22202.

[0058] One side of the scraping member 221 away from the connecting shaft 21 is parallel to the axis of the pyrolysis chamber 113 and extends in the direction of the solid material outlet 1103. There is a predetermined distance between the scraping member 221 and the inner wall of the pyrolysis chamber 113, so that the scraping member 221 can remove the coke blocks while guiding the raw materials in the direction of the solid material outlet 1103.

[0059] Preferably, the distance between the scraping member 221 and the inner wall of the pyrolysis chamber 113 is set to be 8-10 mm.

[0060] Specifically, when both the pyrolysis chamber 113 and the connecting shaft 21 rotate, the coke block treatment assembly 22 connected to the connecting shaft 21 rotates synchronously. At this time, the jet member 222 sprays gas comprehensively on the inner wall of the pyrolysis chamber 113 to comprehensively prevent coking on the inner wall of the pyrolysis chamber 113 and evenly disperse the gas to promote the pyrolysis of the raw materials. At the same time, the scraping member 221 impacts the coke blocks attached to the inner wall of the pyrolysis chamber 113, so that the scraping member 221 scrapes the coke blocks on the inner wall of the pyrolysis chamber 113, thereby cleaning the kiln body 11 and ensuring the service life of the kiln body 11. And the scraping member 221 guides the raw materials in the pyrolysis chamber 113 to the solid material outlet 1103 so that the solid substances generated after the pyrolysis of the raw materials can be discharged.

[0061] Furthermore, the kiln body 11 also has a material cleaning port 1105, which is formed in the kiln head 111. The material cleaning port 1105 is used to collect the raw materials that enter the kiln head 111 from the feed port 1102 but do not enter the pyrolysis chamber 113 and the solid substances that are driven by the gas substances to flow towards the gas-solid material outlet 1104 and are blocked by the inner wall of the kiln head 111 and fall off.

[0062] The pyrolysis kiln 10 also includes at least two first seals 12, and the two first seals 12 are respectively installed on the kiln head 111 and the kiln tail 112 to seal the kiln body 11.

[0063] Preferably, three first seals 12 are provided. One first seal 12 is installed at the kiln head 111 to seal the material cleaning port 1105, and the other two first seals 12 are installed at the kiln tail 112 to seal the solid material outlet 1103, so as to ensure the airtightness of the kiln body 11 and avoid heat loss in the kiln body 11.

[0064] Preferably, the first seal 12 is implemented as a valve.

[0065] Reference Figure 1 , further, the coke block treatment type pyrolysis device further includes a monitoring mechanism 30 and a controller 60. The monitoring mechanism 30 is used to monitor the torque generated by the rotation of the connecting shaft 21. The monitoring mechanism 30 is communicably connected to the controller 60, and the drive of the connecting shaft 21 is controllably connected to the controller 60. When the monitoring mechanism 30 monitors that the torque generated by the rotation of the connecting shaft 21 is greater than the preset torque, the controller 60 controls the drive of the connecting shaft 21 to pause according to the feedback of the monitoring mechanism 30, so as to protect the connecting shaft 21 and prevent the connecting shaft 21 from deforming due to excessive torque, resulting in the scraping member 221 scraping the inner wall of the pyrolysis chamber 113.

[0066] Preferably, the monitoring mechanism 30 is implemented as a torque sensor. The torque sensor converts the physical change of the torque of the connecting shaft 21 into an electrical signal and transmits it to the controller 60, and the controller 60 selectively controls the drive operation of the connecting shaft 21 according to the electrical signal.

[0067] Reference Figure 4 , the coke block treatment type pyrolysis device further includes a pretreatment mechanism 40. The pretreatment mechanism 40 is arranged to supply the raw material to the kiln body 11. The pretreatment mechanism 40 includes a first feeding member 41, and the first feeding member 41 is arranged to supply material to the kiln body 11. The first feeding member 41 has a first feeding port 4101 and a first discharging port 4102. The first feeding port 4101 is used for feeding, and the first discharging port 4102 is connected to the feeding port 1102 through a pipeline.

[0068] Preferably, the discharging speed of the first feeding member 41 is adjustable to match the actual pyrolysis rate of the raw material.

[0069] The pretreatment mechanism 40 further includes a crushing component 42. The crushing component 42 is installed on the pipeline between the first feeding member 41 and the kiln body 11, and the first feeding member 41 can introduce the raw material into the crushing component 42. The crushing component 42 is used to crush the raw material discharged from the first discharging port 4102.

[0070] The shredded material assembly 42 has a second feeding port 4201 and a second discharging port 4202, and the second feeding port 4201 is communicated with the first discharging port 4102. The shredded material assembly 42 is arranged to supply the crushed raw material to the kiln body 11.

[0071] The pretreatment mechanism 40 further includes a screening assembly 43, and the screening assembly 43 is installed in the pipeline between the shredded material assembly 42 and the kiln body 11. The screening assembly 43 is used for screening the raw material crushed by the shredded material assembly 42, and the screening assembly 43 is arranged to introduce the unqualified raw material screened out into the first feeding member 41 so that the unqualified raw material is crushed again until the raw material meets the screening size requirement of the screening assembly 43, so as to avoid too large particle size of the raw material and prolong the pyrolysis time.

[0072] The screening assembly 43 includes a screening main body 431 and a screening member 432, and the screening member 432 is installed on the screening main body 431. The screening main body 431 has a third feeding port 43101, a third discharging port 43102 and a screening cavity 43103. Both the third feeding port 43101 and the third discharging port 43102 are communicated with the screening cavity 43103, and the screening cavity 43103 is located between the third feeding port 43101 and the third discharging port 43102. The screening member 432 is installed in the screening cavity 43103. The screening main body 431 further has a screening outer discharging port 43104 communicated with the first feeding port 4101, and the screening outer discharging port 43104 is arranged above the screening member 432. The screening outer discharging port 43104 is used for discharging the unqualified raw material screened out by the screening member 432.

[0073] Preferably, the screening member 432 is implemented as a screen mesh, and the screening member 432 is detachably installed on the screening main body 431 so as to clean the screening member 432 blocked by the raw material and facilitate the replacement of the screening member 432 with different sizes to meet the use of different types of raw materials.

[0074] Specifically, before the raw materials enter the kiln body 11, the raw materials enter the first feeding member 41 through the first feeding port 4101 and enter the second feeding port 4201 through the first discharging port 4102. At this time, the raw materials enter the crushing assembly 42, and the crushing assembly 42 performs crushing treatment on the raw materials. The crushed raw materials enter the third feeding port 43101 through the second discharging port 4202. The screening member 432 screens the raw materials in the screening chamber 43103, and the qualified raw materials are discharged through the third discharging port 43102. At the same time, the unqualified raw materials pass through the external screening discharge port 43104 and are re-introduced into the first feeding member 41, so that the unqualified raw materials can be crushed and screened again, ensuring that the particle size of the raw materials introduced into the kiln body 11 meets the actual particle size requirements, and avoiding the situation where the raw materials cannot be rapidly pyrolyzed due to the too large particle size of the raw materials in the kiln body 11, thereby improving the pyrolysis efficiency of the raw materials.

[0075] Further, the pretreatment mechanism 40 further includes a second feeding member 44, and the second feeding member 44 is installed on the pipeline between the screening assembly 43 and the kiln body 11. The second feeding member 44 has a fourth feeding port 4401 and a fourth discharging port 4402. The fourth feeding port 4401 is connected to the third discharging port 43102, and the fourth discharging port 4402 is connected to the feeding port 1102 through a pipeline. The second feeding member 44 is configured to receive the qualified raw materials discharged from the third discharging port 43102 and guide the qualified materials screened by the screening assembly 43 into the feeding port 1102.

[0076] Preferably, the discharging speed of the second feeding member 44 is adjustable to match the actual pyrolysis rate of the raw materials.

[0077] The preprocessing mechanism 40 includes a conveying member 45, and the conveying member 45 is installed on the pipeline between the second feeding member 44 and the kiln body 11. The conveying member 45 includes a conveying main body 451 and a conveying assembly 452. The conveying main body 451 has a fifth feeding port 45101, a fifth discharging port 45102, and a conveying cavity 45103 extending from the fifth feeding port 45101 to the fifth discharging port 45102. Both the fifth feeding port 45101 and the fifth discharging port 45102 communicate with the conveying cavity 45103. The conveying main body 451 is located on the pipeline between the second feeding member 44 and the kiln body 11. The fifth feeding port 45101 is connected to the fourth discharging port 4402, and the fifth discharging port 45102 is connected to the feeding port 1102. The conveying assembly 452 is installed in the conveying cavity 45103, and the conveying assembly 452 is configured to drive the raw material input from the fifth feeding port 45101 to pass through the fifth discharging port 45102 and enter the pyrolysis cavity 1101, thereby feeding the raw material to the kiln body 11.

[0078] Preferably, the conveying member 45 is installed on the kiln head 111 and extends from the kiln head 111 to the pyrolysis chamber 113. The fifth discharging port 45102 communicates with the pyrolysis cavity 1101, so that the conveying assembly 452 directly conveys the raw material to the pyrolysis chamber 113 to prevent the raw material from coking on the inner wall of the kiln head 111.

[0079] Preferably, the conveying member 45 is implemented as a screw feeder, and the conveying assembly 452 is implemented to include a screw rod and bearings.

[0080] It is worth mentioning that from the fifth feeding port 45101 to the fifth discharging port 45102, the distance between adjacent two spiral blades of the screw rod gradually decreases, so that while the screw rod conveys the raw material, the raw material is crushed, thereby further reducing the particle size of the raw material and then improving the pyrolysis efficiency of the raw material.

[0081] It should be noted that the speed at which the screw rod pushes the raw material to move is adjustable, so as to appropriately supplement the raw material to the kiln body 11 to prevent the excessive accumulation of the raw material in the kiln body 11 from affecting the pyrolysis progress.

[0082] The preprocessing mechanism 40 further includes at least one second seal 46. The second seal 46 is disposed on the pipeline between the screening assembly 43 and the second feeding member 44, and the second seal 46 is configured to open or close the pipeline between the screening assembly 43 and the second feeding member 44.

[0083] It is worth mentioning that when the screening component 43 stops feeding the second feeding member 44, the pipeline between the screening component 43 and the second feeding member 44 can be closed through the second seal 46 to prevent the heat in the kiln body 11 from escaping through the pretreatment mechanism 40, thereby improving the sealing performance of the raw material pyrolysis and increasing the utilization rate of heat.

[0084] Preferably, two second seals 46 are provided, and the two second seals 46 are arranged in series to further improve the sealing performance of the connection between the second feeding member 44 and the screening component 43.

[0085] Preferably, the second seal 46 is implemented as a valve.

[0086] Reference Figure 5 Referring to , the coke block treatment type pyrolysis device further includes a solid material treatment mechanism 50, and the solid material treatment mechanism 50 is configured to collect the solid substances generated by the pyrolysis of the raw materials discharged from the solid material outlet 1103. The solid material treatment mechanism 50 includes a cold feeding member 51, and the cold feeding member 51 includes a cold slag main body 511, a cooling assembly 512 and a rolling and feeding assembly 513. The cold slag main body 511 has a material receiving port 51101, a material discharging port 51102 and a cooling cavity 51103 extending from the material receiving port 51101 to the material discharging port 51102. Both the material receiving port 51101 and the material discharging port 51102 are communicated with the cooling cavity 51103, and the material receiving port 51101 is communicated with the solid material outlet 1103.

[0087] The cooling assembly 512 has at least one water inlet 51201, at least one water outlet 51202 and a water cavity 51203. Both the water inlet 51201 and the water outlet 51202 are communicated with the water cavity 51203, and the cold slag main body 511 is installed in the water cavity 51203.

[0088] Preferably, the water inlet 51201 of the cooling assembly 512 is communicated with an external water supply mechanism, so that water enters the water cavity 51203 from the water inlet 51201 and is discharged from the water outlet 51202, thereby continuously providing cold energy for the cooling cavity 51103.

[0089] The rolling and feeding assembly 513 is installed in the cooling cavity 51103, and the rolling and feeding assembly 513 is configured to transfer the solid substances entering from the material receiving port 51101 to the material discharging port 51102. At the same time, the solid substances are agitated by the rolling and feeding assembly 513, so that the heat of the solid substances is absorbed by the water in the water cavity 51203, thereby accelerating the heat loss of the solid substances and improving the cooling efficiency of the solid substances.

[0090] Preferably, the rolling component 513 is implemented to include a screw rod and a bearing.

[0091] Preferably, the transfer speed of the rolling component 513 for the solid material is adjustable. Therefore, the transfer speed of the solid material can be changed by adjusting the movement speed of the rolling component 513, so as to adjust the residence time of the solid material in the cooling chamber 51103, and further control the cooling degree of the solid material.

[0092] The solid material processing mechanism 50 further includes a collection chamber 52, the collection chamber 52 has a feeding port 5201 and a collection chamber 5202 communicated with the feeding port 5201, and the feeding port 5201 is communicated with the discharging port 51102. The collection chamber 52 is arranged to receive the solid material discharged from the discharging port 51102, so as to collect and process the solid material.

[0093] According to another aspect of the present invention, a working method of the coke block processing pyrolysis device is now proposed, and the steps are as follows:

[0094] (A) The gas is discharged from the jet port 22202 into the pyrolysis chamber 1101 through the communication channel 22201 to prevent coking on the inner wall of the pyrolysis chamber 113.

[0095] (B) The pyrolysis chamber 113 and the connecting shaft 21 rotate relatively, so that the scraping member 221 located in the pyrolysis chamber 1101 scrapes the coke blocks generated by the pyrolysis of the raw material on the inner wall of the pyrolysis chamber 113.

[0096] Preferably, the working method of the coke block processing pyrolysis device further includes:

[0097] (a) The raw material is introduced into the crushing component 42 by the first feeding member 41, the crushing component 42 crushes the raw material and introduces it into the screening component 43, and the screening component 43 screens the raw material. The unqualified raw material is introduced into the first feeding member 41, so as to repeat the crushing operation on the unqualified raw material.

[0098] (b) The qualified raw material screened out is introduced into the second feeding member 44, and is transferred to the conveying member 45 through the second feeding member 44, and then the conveying member 45 transfers the raw material to the pyrolysis chamber 1101 to realize feeding.

[0099] (c) The solid material generated by the pyrolysis of the raw material is discharged from the solid material outlet 1103, and the cold feeding member 51 cools and conveys the solid material to the collection chamber 52.

[0100] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may have any variations or modifications without departing from the said principles.

Claims

1. A coke lump processing type pyrolysis device for pyrolyzing raw materials and capable of preventing the raw materials from coking and removing coke lumps, characterized in that, The coke block processing type pyrolysis device includes: A pyrolysis kiln, the pyrolysis kiln includes a kiln body, the kiln body includes a kiln head, a kiln tail and a pyrolysis chamber extending between the kiln head and the kiln tail, the kiln head, the kiln tail and the pyrolysis chamber form a pyrolysis cavity; A coke block processing mechanism, the coke block processing mechanism includes a connecting shaft and a plurality of coke block processing components, the connecting shaft is installed on the kiln body, the coke block processing component includes a scraping member and a jet member, the jet member is arranged in the pyrolysis cavity, the jet member has a communication channel and at least one jet orifice communicating with the communication channel, the jet orifice communicates with the pyrolysis cavity, the jet member is used for injecting gas into the pyrolysis chamber, the scraping member is connected to the connecting shaft, and there is a gap between the scraping member and the inner wall of the pyrolysis chamber, the pyrolysis chamber and the connecting shaft rotate relatively to make the scraping member scrape the coke blocks on the inner wall of the pyrolysis chamber; The kiln body also has a feed port, a solid material outlet and a gas material outlet communicating with the pyrolysis cavity, the solid material outlet is formed at the kiln tail, the gas material outlet is formed at the kiln head, the solid material outlet is used for discharging the solid substances generated after the pyrolysis of the raw material, the gas material outlet is used for discharging the gas substances generated after the pyrolysis of the raw material, the kiln body has a high end portion and a low end portion, the kiln head is arranged at the high end portion, the kiln tail is arranged at the low end portion, and the kiln body is inclined at a predetermined angle to guide the raw material in the pyrolysis cavity to move from the high end portion to the kiln tail at the low end portion; The jet member is installed between the connecting shaft and the scraping member, the connecting shaft has a gas transmission channel and a guiding inlet communicating with the gas transmission channel, the communication channel communicates with the gas transmission channel, and the guiding inlet is used for introducing gas into the gas transmission channel and conveying the gas to the jet member through the gas transmission channel; One end of the jet member away from the connecting shaft bends towards the inner wall of the pyrolysis chamber and extends towards the direction of the solid material outlet, and the jet orifice faces the inner wall of the pyrolysis chamber; One side of the scraping member away from the connecting shaft is parallel to the axial direction of the pyrolysis chamber and extends towards the direction of the solid material outlet, so that the scraping member can clear the coke blocks and at the same time push the raw material towards the direction of the solid material outlet.

2. The pyrolysis device for treating coke lumps according to claim 1, characterized in that, The kiln body also has a cleaning port, the cleaning port is formed at the kiln head, the cleaning port is used for collecting the raw material that enters the kiln head from the feed port but does not enter the pyrolysis chamber and the solid substances that are driven by the gas substances to flow towards the gas material outlet and are blocked by the inner wall of the kiln head and fall off, and the pyrolysis kiln also includes at least two first sealing members, and the two first sealing members are respectively installed at the kiln head and the kiln tail.

3. The pyrolysis device for treating coke lumps according to claim 2, characterized in that, The coke block processing pyrolysis device further includes a pretreatment mechanism. The pretreatment mechanism includes a first feeding member, which has a first feeding port and a first discharging port. The first feeding port is used for feeding materials, and the first discharging port is connected to the feeding port through a pipeline. The first feeding member is arranged to supply materials to the kiln body. The pretreatment mechanism includes a crushing component, which is installed in the pipeline between the first feeding member and the kiln body. The crushing component has a second feeding port and a second discharging port. The second feeding port is connected to the first discharging port. The crushing component is used for crushing the raw materials discharged from the first discharging port. The pretreatment mechanism includes a screening component, which is installed in the pipeline between the crushing component and the kiln body. The screening component includes a screening main body and a screening member. The screening main body has a third feeding port, a third discharging port and a screening cavity. Both the third feeding port and the third discharging port are connected to the screening cavity, and the screening cavity is located between the third feeding port and the third discharging port. The screening member is installed in the screening cavity. The screening main body also has a screening external discharging port connected to the first feeding port. The screening external discharging port is used for discharging the unqualified raw materials screened by the screening member. The screening external discharging port is arranged above the screening member so that the unqualified raw materials screened by the screening member can be introduced into the first feeding member. The pretreatment mechanism further includes a second feeding member, which is installed in the pipeline between the screening component and the kiln body. The second feeding member has a fourth feeding port and a fourth discharging port. The fourth feeding port is connected to the third discharging port. The fourth discharging port is connected to the feeding port through a pipeline. The second feeding member is arranged to receive the qualified raw materials discharged from the third discharging port and guide the qualified materials screened by the screening component into the feeding port. The pretreatment mechanism includes a conveying member, which is installed in the pipeline between the second feeding member and the kiln body. The conveying member includes a conveying main body and a conveying component. The conveying main body has a fifth feeding port, a fifth discharging port and a conveying cavity extending from the fifth feeding port to the fifth discharging port. Both the fifth feeding port and the fifth discharging port are communicated with the conveying cavity. The conveying component is installed in the conveying cavity. The conveying main body is located in the pipeline between the second feeding member and the kiln body. The fifth feeding port is connected to the fourth discharging port, and the fifth discharging port is connected to the feeding port. The conveying component is arranged to drive the raw materials input from the fifth feeding port to pass through the fifth discharging port and enter the pyrolysis cavity.

4. The pyrolysis device for treating coke lumps according to claim 3, wherein, The coke block treatment type pyrolysis device further includes a solid material treatment mechanism, which is configured to collect the solid substances generated by the pyrolysis of the raw materials discharged from the solid material outlet. The solid material treatment mechanism includes a cold feeding member, and the cold feeding member includes a cold slag main body, a cooling assembly, and a rolling and feeding assembly. The cold slag main body has a material receiving port, a discharging port, and a cooling cavity extending from the material receiving port to the discharging port. Both the material receiving port and the discharging port are communicated with the cooling cavity, and the material receiving port is communicated with the solid material outlet. The cooling assembly has at least one water inlet, at least one water outlet, and a water cavity. Both the water inlet and the water outlet are communicated with the water cavity. The cold slag main body is installed in the water cavity, and the water inlet is communicated with an external water supply mechanism. The rolling and feeding assembly is installed in the cooling cavity, and is configured to transfer the solid substances entering from the material receiving port to the discharging port. At the same time, the solid substances are agitated by the rolling and feeding assembly, so that the heat of the solid substances is absorbed by the water in the water cavity. The solid material treatment mechanism further includes a collection chamber, which has a material inlet and a collection cavity communicated with the material inlet. The material inlet is communicated with the discharging port, and the collection chamber is configured to receive the solid substances discharged from the discharging port.

5. The working method of the coke block treatment type pyrolysis device according to claim 4, characterized in that, The working method of the coke block treatment type pyrolysis device includes the following steps: (A)The gas is discharged from the jet orifice into the pyrolysis cavity through the communication channel to prevent coking on the inner wall of the pyrolysis chamber. (B)The pyrolysis chamber and the connecting shaft rotate relative to each other, so that the scraping member located in the pyrolysis cavity scrapes the coke blocks generated by the pyrolysis of the raw materials on the inner wall of the pyrolysis chamber.

6. The working method of the coke block treatment type pyrolysis device according to claim 5, characterized in that, The working method of the coke block treatment type pyrolysis device includes the following steps: (a)The raw materials are introduced into the crushing assembly by the first feeding member. The crushing assembly crushes the raw materials and introduces them into the screening assembly. The screening assembly screens the raw materials, and the unqualified raw materials are introduced into the first feeding member, and the crushing operation is repeated for the unqualified raw materials. (b)The qualified raw materials screened out are introduced into the second feeding member, and are transferred to the conveying member through the second feeding member, and then the conveying member transfers the raw materials to the pyrolysis cavity to achieve feeding. (c)The solid substances generated by the pyrolysis of the raw materials are discharged from the solid material outlet, and the cold feeding member cools and conveys the solid materials to the collection chamber.

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