Vertical carbonization furnace

Abstract

The utility model discloses a vertical carbonization furnace, which relates to the field of carbonization furnaces and comprises a furnace body comprising a carbonization section, a preheating section arranged at the upper part of the carbonization section, a cooling section arranged at the lower part of the carbonization section, a high-temperature gas inlet channel arranged at an outlet of an incinerator and connected with the lower part of the carbonization section, and a raw gas recovery pipe arranged at the top of the carbonization section, the raw gas recovery pipe is connected with the incinerator, the carbonization section comprises a plurality of high-temperature flue gas ducts, a plurality of material channels and raw gas ducts are clamped between every two high-temperature flue gas ducts, the material channels and the raw gas ducts are sequentially arranged in groups, a plurality of partition plates are arranged between the material channels and the raw gas ducts, and a raw gas overflow channel is arranged between every two partition plates. According to the utility model, the material channel, the raw gas channel and the high-temperature flue gas channel are divided, and carbonized materials are heated through thermal radiation, so that the maintenance cost of the incinerator body and the incinerator is reduced. According to the utility model, crushed aggregates can be adopted for carbonization, so that the production cost of a user is greatly reduced, and economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to the field of carbonization furnaces, in particular to a vertical carbonization furnace. Background Art

[0002] Activated carbon has the advantages of developed pore structure, large specific surface area, strong adsorption capacity, high mechanical strength, stable chemical properties, easy regeneration, and durability. It is an excellent adsorbent and catalytic carrier, which is widely used in various fields of environmental protection, food industry, pharmaceutical industry, agriculture, catalysts and their carriers, national defense, aerospace and people's daily life. In recent years, with the development of industry, activated carbon has played a pivotal role in the field of environmental protection and has become an adsorption material on which human beings depend for survival.

[0003] The carbonization furnace adopts the principle of dry distillation carbonization, which is a reaction process of heating and decomposition under air-tight conditions. Dry distillation of wood produces various gases, steam and solid carbon (including activated carbon). The smoke generated during carbonization can be recycled.

[0004] The current technical solution adopted by the carbonization furnace is to load raw materials such as wood, bamboo tubes, branches, and fruit wood into the furnace, and then heat and ignite the carbonized raw materials inside the furnace through the ignition port, so that the raw materials in the furnace reach the temperature and burn inside the furnace to crack and carbonize to form charcoal.

[0005] However, different types of carbonization furnaces have different requirements for the size of raw materials. Large and neat raw materials on the market are more expensive than fragmented raw materials. Therefore, in actual operation, the raw materials need to be determined according to the specific type of carbonization furnace. For carbonization furnaces that can only use large pieces of raw materials, its production cost will increase and its economic benefits will decrease. Although the use of finely crushed raw materials can reduce production costs, if the finely crushed raw materials are piled up too much and too thick during the production process, the gas and other components generated during the carbonization production process cannot be discharged due to the dense material accumulation and small gaps, resulting in a decrease in carbonization efficiency, thereby reducing production efficiency. Utility Model Content

[0006] The utility model aims to design a vertical carbonization furnace in view of the deficiencies in the prior art, so as to solve the problem that the carbonization efficiency is weakened due to excessive and thick accumulation of finely crushed raw materials in the production process.

[0007] In order to achieve the above purpose, the utility model provides a vertical carbonization furnace, which adopts the following technical solutions, including:

[0008] A vertical carbonization furnace, characterized in that it comprises: a bracket, a furnace body is arranged on the upper part of the bracket, the furnace body comprises a carbonization section, a preheating section is arranged on the upper part of the carbonization section, a cooling section is arranged on the lower part of the carbonization section, a cooling and discharging system is arranged at the bottom of the cooling section, an incinerator is arranged on one side of the carbonization section, a high-temperature air inlet is arranged at the outlet of the incinerator and connected to the lower part of the carbonization section, a raw gas recovery pipe is arranged on the top of the carbonization section, and the raw gas recovery pipe is connected to the incinerator.

[0009] Furthermore, the carbonization section includes a plurality of high-temperature flue gas ducts, a plurality of material channels and raw coal gas ducts are sandwiched between the two high-temperature flue gas ducts, the material channels and raw coal gas ducts are arranged in groups in sequence, a plurality of partition plates are arranged between the material channels and the raw coal gas ducts, raw coal gas overflow channels are arranged between the two partition plates, the top of the material channel is a material addition port, and the tops of the various raw coal gas ducts are connected to the raw coal gas recovery pipe.

[0010] Furthermore, the partition plates are arranged in a parallelogram or rhombus shape, and the raw gas overflow channel between the parallelogram or rhombus-shaped partition plates allows the raw gas to enter the raw gas channel obliquely upward from the material channel.

[0011] Furthermore, a waste heat air duct is provided on one side of the carbonization section, the waste heat air duct is connected to a waste heat boiler, an air outlet is provided on the other side of the waste heat boiler, the air outlet is provided with an induced draft fan, a water feed pump is provided on one side of the waste heat boiler, and the water feed pump is connected to a water feed pipe connected to the waste heat boiler.

[0012] Furthermore, a discharging door frame is provided at the bottom of the cooling discharging system, and a discharging port is provided in the middle of the discharging door frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The material channel of the utility model is vertically connected, the upper end is the feed port, the lower end is connected to the cooling section, and the material moves from top to bottom; the raw gas channel is vertically connected, the upper end is connected to the raw gas recovery pipe, the raw gas moves from bottom to top, the dust falls to the bottom, and then enters the cooling section, the material channel, the raw gas channel, and the high-temperature flue gas channel are divided, the carbonized material is heated by thermal radiation, and large pieces of material or small-sized fine materials can pass through the material channel, the raw gas and other combustible components generated during the carbonization process can enter the raw gas channel through the raw gas overflow channel and then flow to the raw gas recovery pipe, return to the incinerator to participate in combustion and heat generation again, prevent dust accumulation from clogging the flue, ensure the purity of raw gas and flue gas, improve the durability of the furnace body and the incinerator, and reduce the maintenance cost of the furnace body and the incinerator. It can realize continuous production of carbonization, uninterrupted feeding and discharging, and reduce the production cost of users.

[0015] Moreover, the price of large pieces of materials used for carbonization on the market is relatively high, while the price of small-sized fine materials is low. When the crushed materials are used for carbonization, the utility model can avoid the problem of reduced carbonization efficiency caused by the inability to discharge the gas and other components generated in the carbonization production process due to the dense accumulation of materials and small gaps due to the presence of the raw gas overflow channel. The use of crushed materials for carbonization can greatly reduce the user's production cost and improve economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the furnace body and the incinerator of the utility model when viewed from above;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the material channel and the waste gas channel of the independent unit of the utility model;

[0019] Figure 4 It is a schematic cross-sectional structure diagram of the material channel and the raw coal gas channel of the local independent unit of the utility model.

[0020] In the figure: 1- bracket; 2- furnace body; 3- preheating section; 4- carbonization section; 5- cooling section; 6- cooling and discharging system; 7- discharging gantry; 8- discharging port; 9- incinerator; 10- high-temperature air inlet duct; 11- raw gas recovery pipe; 12- waste heat gas duct; 13- waste heat boiler; 14- exhaust duct; 15- induced draft fan; 16- feed water pump; 17- feed water pipe; 41- high-temperature flue gas duct; 411- high-temperature flue gas direction; 42- material channel; 421- material direction; 422- raw gas overflow direction; 43- raw gas duct; 431- raw gas direction; 44- partition board; 45- raw gas overflow channel. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0022] In the description of the present invention, it should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-Figure 4 As shown, the utility model is a vertical carbonization furnace, comprising:

[0025] A vertical carbonization furnace, characterized in that it comprises: a support 1, a furnace body 2 is arranged on the upper part of the support 1, the furnace body 2 comprises a carbonization section 4, a preheating section 3 is arranged on the upper part of the carbonization section 4, a cooling section 5 is arranged on the lower part of the carbonization section 4, a cooling and discharging system 6 is arranged at the bottom of the cooling and discharging system 6, a discharging door frame 7 is arranged at the bottom of the discharging door frame 7, and a discharging port 8 is arranged in the middle of the discharging door frame 7. An incinerator 9 is arranged on one side of the carbonization section 4, a high-temperature air inlet 10 is arranged at the outlet of the incinerator 9 and connected to the lower part of the carbonization section 4, a raw gas recovery pipe 11 is arranged on the top of the carbonization section 4, and the raw gas recovery pipe 11 is connected to the incinerator 9. A waste heat gas duct 12 is provided on one side of the carbonization section 4, and the waste heat gas duct 12 is connected to a waste heat boiler 13. An air outlet duct 14 is provided on the other side of the waste heat boiler 13, and a draft fan 15 is provided on the air outlet duct 14. A water feed pump 16 is provided on one side of the waste heat boiler 13, and the water feed pump 16 is connected to a water feed pipe 17 connected to the waste heat boiler 13.

[0026] Specifically, a feeding device connected to the feeding port is arranged on the top of the furnace body, and the carbonized raw coal gas is pumped into the incinerator through a pipeline, and air is added into the incinerator to ignite the introduced raw coal gas in the incinerator. The ignited high-temperature flue gas enters the vertical carbonization furnace to provide a heat source for the vertical carbonization furnace; the flue gas is extracted by the induced draft fan.

[0027] The carbonization section 4 includes a plurality of high-temperature flue gas ducts 41, and a plurality of material channels 42 and raw coal gas ducts 43 are sandwiched between the two high-temperature flue gas ducts 41. Figure 2 As shown, the high-temperature flue gas flows from the incinerator 9 through the air inlet 10 into the high-temperature flue gas duct 41. The material duct 42 and the raw coal gas duct 43 are arranged in groups, and a plurality of partition plates 44 are arranged between the material duct 42 and the raw coal gas duct 43. The partition plates 44 are arranged in a parallelogram or rhombus shape, such as Figure 2-4As shown, the material direction 421 is from top to bottom, and enters the material channel 42 after passing through the preheating section 3. The material is heated and carbonized by the heat radiation of the high-temperature flue gas channels 41 on both sides of the material channel 42. The raw gas generated during carbonization passes through the raw gas overflow channel 45 between the partition plates 44 and enters the raw gas channel 43. The raw gas overflow channel 45 between the parallelogram or rhombus-shaped partition plates 44 allows the raw gas to overflow in the direction 422 from the material channel 42 to enter the raw gas channel 43 obliquely upward. After the raw gas enters the raw gas channel 43, the raw gas direction 431 vertically upward enters the raw gas recovery pipe 11. The tops of the various raw gas channels 43 are connected to the raw gas recovery pipe 11.

[0028] Specifically, the material channel is vertically connected, with the upper end being the feed port and the lower end connected to the cooling section, and the material moves from top to bottom; the raw coal gas duct is vertically connected, with the upper end connected to the raw coal gas recovery pipe, and the raw coal gas moves from bottom to top, and the dust falls to the bottom and then enters the cooling section, dividing the material channel, the raw coal gas duct, and the high-temperature flue gas duct to prevent dust accumulation from clogging the flue, thereby ensuring the purity of the raw coal gas and the flue gas.

[0029] The draft of raw gas, the draft of the incinerator and the draft of the furnace body are all controlled by an external induced draft fan. A cooling and discharging system 6 is provided at the bottom of the furnace body, which is used to cool the material output from the furnace body and discharge it after cooling. The cooling and discharging system 6 is provided with a plurality of water-cooled square tubes, and the space between two adjacent water-cooled square tubes is a cooling chamber, which is located below the material channel 42. A specially designed discharging device is provided below the cooling chamber to control the discharging speed and amount.

[0030] The above embodiments are only preferred embodiments of the present invention. The above descriptions do not limit the protection scope of the present invention in turn. The above descriptions are exemplary and not exhaustive. Therefore, any equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to ordinary technicians in this technical field.

Claims

1. A vertical carbonization furnace, characterized in that: include: A support (1), wherein a furnace body (2) is arranged on the upper part of the support (1), wherein the furnace body (2) comprises a carbonization section (4), wherein a preheating section (3) is arranged on the upper part of the carbonization section (4), wherein a cooling section (5) is arranged on the lower part of the carbonization section (4), wherein a cooling discharging system (6) is arranged on the bottom of the cooling section (5), wherein an incinerator (9) is arranged on one side of the carbonization section (4), wherein a high-temperature air inlet (10) is arranged at the outlet of the incinerator (9) and connected to the lower part of the carbonization section (4), wherein a raw gas recovery pipe (11) is arranged on the top of the carbonization section (4), wherein the raw gas recovery pipe (11) is connected to the incinerator (9) ) are connected, the carbonization section (4) comprises a plurality of high-temperature flue gas ducts (41), a plurality of material ducts (42) and raw coal gas ducts (43) are sandwiched between the two high-temperature flue gas ducts (41), the material ducts (42) and raw coal gas ducts (43) are arranged in groups, a plurality of partition plates (44) are arranged between the material ducts (42) and raw coal gas ducts (43), a raw coal gas overflow channel (45) is arranged between the two partition plates (44), the top of the material duct (42) is a material addition port, and the tops of the raw coal gas ducts (43) are connected to the raw coal gas recovery pipe (11).

2. A vertical carbonization furnace according to claim 1, characterized in that: The partition plates (44) are arranged in a parallelogram shape, and the raw gas overflow channel (45) between the parallelogram-shaped partition plates (44) allows the raw gas to flow obliquely upward from the material channel (42) into the raw gas channel (43).

3. A vertical carbonization furnace according to claim 1, characterized in that: A waste heat air duct (12) is provided on one side of the carbonization section (4), and the waste heat air duct (12) is connected to a waste heat boiler (13). An air outlet duct (14) is provided on the other side of the waste heat boiler (13), and an induced draft fan (15) is provided on the air outlet duct (14). A water feed pump (16) is provided on one side of the waste heat boiler (13), and the water feed pump (16) is connected to a water feed pipe (17) connected to the waste heat boiler (13).

4. A vertical carbonization furnace according to claim 1, characterized in that: A discharging door frame (7) is arranged at the bottom of the cooling discharging system (6), and a discharging port (8) is arranged in the middle of the discharging door frame (7).

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