CN117531226A - Gasification device and catalytic degreasing furnace - Google Patents
Gasification device and catalytic degreasing furnace Download PDFInfo
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- CN117531226A CN117531226A CN202311518441.6A CN202311518441A CN117531226A CN 117531226 A CN117531226 A CN 117531226A CN 202311518441 A CN202311518441 A CN 202311518441A CN 117531226 A CN117531226 A CN 117531226A
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- oxalic acid
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- 238000002309 gasification Methods 0.000 title claims abstract description 45
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 23
- 238000005238 degreasing Methods 0.000 title claims abstract description 23
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 397
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 132
- 238000003860 storage Methods 0.000 claims abstract description 74
- 238000003825 pressing Methods 0.000 claims abstract description 69
- 239000007787 solid Substances 0.000 claims abstract description 50
- 238000003756 stirring Methods 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 230000007704 transition Effects 0.000 claims description 35
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 238000010408 sweeping Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D7/00—Sublimation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0278—Feeding reactive fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/085—Feeding reactive fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
- B22F3/1025—Removal of binder or filler not by heating only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention discloses a gasification device, which is used for gasifying solid oxalic acid to gasify the solid oxalic acid into gaseous oxalic acid and oxalic acid ash, and comprises the following components: the main body is provided with a storage cavity for placing the solid oxalic acid; the heating piece is connected with the main body in a heat conduction way and is used for heating the solid oxalic acid in the storage cavity; the stirring assembly comprises a stirring piece and a driving piece, and the driving piece is connected with the stirring piece; the pressing parts are arranged in the storage cavity, and the volume of the pressing parts is larger than that of the oxalic acid ash; wherein the driving member is capable of driving the stirring member to move so that the stirring member stirs the solid oxalic acid and the pressing member together. The gasification device can effectively prevent oxalic acid ash from entering the catalytic degreasing furnace.
Description
Technical Field
The invention relates to the technical field of catalytic degreasing furnaces, in particular to a gasification device and a catalytic degreasing furnace.
Background
In the related art, the process of injection molding of metal or ceramic powders includes the step of forming a green body from the metal powder and a binder, which requires binder removal (catalytic degreasing) prior to sintering to obtain a complete metal phase. The removal of the adhesive can be performed with a relatively fast processing efficiency by means of the catalyst. Among them, oxalic acid can be widely used as a catalyst.
Oxalic acid is solid at normal temperature, and the solid oxalic acid cannot participate in catalytic reaction. Therefore, before oxalic acid enters the furnace body for reaction, the oxalic acid needs to be stirred and gasified by a gasification device, so that the oxalic acid becomes gas to enter the furnace body for reaction. Wherein, when oxalic acid is gasified at high temperature, one part of solid oxalic acid is decomposed into gas, and the other part of solid oxalic acid forms oxalic acid ash. When the gaseous oxalic acid enters the furnace body for reaction, the oxalic acid ash is doped into the gaseous oxalic acid ash and enters the furnace body for reaction. This results in oxalic acid ash sticking to the product, which results in lower sintered product yields.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the gasification device which can effectively prevent oxalic acid ash from entering the catalytic degreasing furnace.
The invention also provides a catalytic degreasing furnace.
An embodiment of a gasification apparatus according to the first aspect of the present invention is for gasifying solid oxalic acid to gasify the solid oxalic acid into gaseous oxalic acid and oxalic acid ash, comprising:
the main body is provided with a storage cavity for placing the solid oxalic acid;
the heating piece is connected with the main body in a heat conduction way and is used for heating the solid oxalic acid in the storage cavity;
the stirring assembly comprises a stirring piece and a driving piece, and the driving piece is connected with the stirring piece;
the pressing parts are arranged in the storage cavity, and the volume of the pressing parts is larger than that of the oxalic acid ash;
wherein the driving member is capable of driving the stirring member to move so that the stirring member stirs the solid oxalic acid and the pressing member together.
The gasification device provided by the embodiment of the invention has at least the following beneficial effects: the solid oxalic acid is quantitatively fed into the storage cavity through the discharge hole, after entering the storage cavity, the solid oxalic acid can be quickly turned into the bottom of the storage cavity by the pressing part, the main body is heated by the heating part, the solid oxalic acid can be gasified after meeting high temperature, the solid oxalic acid is gasified at the bottom of the storage cavity and then is decomposed into gaseous oxalic acid and oxalic acid ash, the quality of the gaseous oxalic acid is smaller than that of the oxalic acid ash, the gaseous oxalic acid floats upwards and leaves the storage cavity along with the gas entering through the discharge hole, the oxalic acid ash is of larger powdery quality and can be left at the bottom of the storage cavity, and the pressing part can effectively prevent the oxalic acid ash from leaving the storage cavity along with the gas. Therefore, the gasification device can effectively prevent oxalic acid ash from entering the catalytic degreasing furnace.
According to some embodiments of the invention, the press is spherical.
According to some embodiments of the invention, the material of the pressing member is a heat conductive material.
According to some embodiments of the invention, the stirring member comprises a body and a plurality of sweep bars, a first end of the sweep bars is connected with the body, and the body is fixedly connected with the driving member.
According to some embodiments of the invention, the pressing piece is spherical, the diameter of the pressing piece is D, and the distance between the second end of the sweeping rod and the side wall of the storage cavity is L1, and 3D is less than or equal to L1 and less than or equal to 4D.
According to some embodiments of the invention, the pressing member is spherical, the diameter of the pressing member is D, the distance between the bottom surface of the sweep bar and the bottom wall of the storage chamber is L2, l2=d (1+k), and k=0.1 to 0.5.
According to the gasification device of some embodiments of the present invention, the cross section of the sweeping rod is triangular, the sweeping rod comprises a bottom surface and two inclined surfaces, two ends of the bottom surface are respectively connected to one ends of the two inclined surfaces, which are far away from the bottom surface, are mutually connected, and an included angle between the inclined surfaces and the bottom surface is alpha, and is more than or equal to 35 degrees and less than or equal to 50 degrees.
According to the gasification device of some embodiments of the present invention, the pressing piece is spherical, the diameter of the pressing piece is D, the sweeping rod further includes a first transition surface and a second transition surface, one end of the first transition surface is vertically connected with the bottom surface, the other end of the first transition surface is connected with the inclined surface, two ends of the second transition surface are respectively connected with two inclined surfaces, the widths of the first transition surface and the second transition surface are L3, and L3 is more than or equal to 0.1D and less than or equal to 0.3D.
According to some embodiments of the invention, the heating element comprises a first heating element thermally connected to the bottom of the main body and a second heating element thermally connected to the side of the main body.
According to a second aspect of the embodiment of the present invention, a catalytic degreasing furnace includes:
the furnace body is provided with a reaction cavity;
the gasification device according to any one of the embodiments of the first aspect, wherein the gasification device is communicated with the reaction cavity, so that the gaseous oxalic acid enters the reaction cavity.
The catalytic degreasing furnace provided by the embodiment of the invention has at least the following beneficial effects: in gasification equipment, solid oxalic acid is sent into the storage chamber through the drain hole by the ration, after solid oxalic acid got into the storage chamber, can be turned over the bottom of storage chamber rapidly by the suppression spare, heat the main part through the heating spare, solid oxalic acid can gasify after meeting high temperature, solid oxalic acid breaks down into gaseous oxalic acid and oxalic acid ash after the bottom gasification of storage chamber, the quality of gaseous oxalic acid is less than oxalic acid ash, gaseous oxalic acid come-up leaves the storage chamber along with the gas that the drain hole got into, oxalic acid ash is powdery quality great, can stay in the storage chamber bottom, the suppression spare can effectively prevent oxalic acid ash along with gaseous leaving the storage chamber. Therefore, the gasification device can effectively prevent oxalic acid ash from entering the catalytic degreasing furnace. Further, the gasification device is communicated with the reaction cavity, so that less oxalic acid ash is in the reaction cavity, and the qualification rate of products processed by the catalytic degreasing furnace is higher.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic illustration of a gasification apparatus according to some embodiments of the invention;
FIG. 2 is a schematic cross-sectional view of a gasification apparatus according to a first embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of a gasification apparatus according to a second embodiment of the invention;
FIG. 4 is a schematic cross-sectional view of a gasification apparatus according to a third embodiment of the invention;
FIG. 5 is a schematic view of a stirring member in a gasification apparatus according to a first embodiment of the invention;
FIG. 6 is a schematic view of a stirring member in a gasification apparatus according to a second embodiment of the invention;
fig. 7 is a schematic view of a stirring member in a gasification apparatus according to a third embodiment of the invention.
Reference numerals:
the gasification apparatus 10, the main body 100, the storage chamber 110, the heating member 200, the first heating member 210, the second heating member 220, the pressing member 300, the stirring assembly 400, the stirring member 410, the body 411, the sweep bar 412, the first end 413, the second end 414, the bottom surface 415, the inclined surface 416, the first transition surface 417, the second transition surface 418, and the driving member 420.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1 and 2, in some embodiments, a gasification device 10 is used to gasify solid oxalic acid into gaseous oxalic acid and oxalic acid ash. The oxalic acid ash is in powder form. The gasification apparatus 10 includes: a main body 100, a heating member 200, a stirring assembly 400, and a plurality of pressing members 300. The main body 100 is provided with a storage chamber 110, and the storage chamber 110 is used for placing solid oxalic acid. It is contemplated that the body 100 further includes a discharge port in communication with the storage chamber 110 for facilitating placement of solid oxalic acid in the storage chamber 110 and a discharge port for facilitating entry of gaseous oxalic acid into the catalytic degreasing furnace. After the solid oxalic acid is placed in the storage chamber 110, the heating member 200 is required to heat. After the heating member 200 heats the solid oxalic acid, the solid oxalic acid is separated into gaseous oxalic acid and oxalic acid ash. Specifically, the heating element 200 is thermally connected to the main body 100, and the heating element 200 is used for heating the solid oxalic acid in the storage cavity 110. The heating member 200 may be a heating plate provided at the bottom of the body 100 to heat the storage chamber 110. In the heating process, in order to improve the heating efficiency, the solid oxalic acid may be stirred by the stirring member 410 to be heated uniformly. Further, the stirring assembly 400 includes a stirring member 410 and a driving member 420, the driving member 420 being connected to the stirring member 410. The pressing members 300 are disposed in the storage chamber 110, and the volume of the pressing members 300 is greater than the volume of the oxalic acid ash. Wherein the driving member 420 can drive the stirring member 410 to move so that the stirring member 410 stirs the solid oxalic acid and the pressing member 300 together.
Specifically, in the gasification device 10, the solid oxalic acid is quantitatively fed into the storage cavity 110 through the discharge port (the discharge port is communicated with the storage cavity 110), after entering the storage cavity 110, the solid oxalic acid can be quickly turned into the bottom of the storage cavity 110 by the pressing part 300, the main body 100 is heated by the heating part 200, the solid oxalic acid can be gasified after meeting high temperature, the solid oxalic acid is gasified at the bottom of the storage cavity 110 and then is decomposed into gaseous oxalic acid and oxalic acid ash, the mass of the gaseous oxalic acid is smaller than that of the oxalic acid ash, the gaseous oxalic acid floats upwards and leaves the storage cavity 110 along with the gas entering through the discharge port, the oxalic acid ash is in a powdery mass and can be left at the bottom of the storage cavity 110, and the pressing part 300 can effectively prevent the oxalic acid ash from leaving the storage cavity 110 along with the gas. In this way, the gasification apparatus 10 can effectively prevent oxalic acid ash from entering the catalytic degreasing furnace.
Both the oxalic acid ash and the pressed article 300 may be considered particulate objects. Wherein the oxalic acid ash is an object with smaller particles and the pressed part 300 is an object with larger particles. Under the stirring of the stirring member 410, separation of the large and small particles occurs, and generally, large particles (the pressing member 300) move to the upper layer of the storage chamber 110 and small particles (oxalic acid ash) move to the lower layer of the storage chamber 110. Therefore, it is conceivable that the oxalic acid ash does not follow the gaseous oxalic acid to enter the catalytic degreasing furnace from the discharge port after moving to the lower layer, thereby affecting the quality of the product and making the qualification rate of the product lower.
Further, in order to allow the pressing member 300 to move with each other when the pressing member 300 is moved by the stirring member 410, the pressing member 300 and the oxalic acid ash can move with each other, and the pressing member 300 can be arranged in a spherical shape. Specifically, referring to fig. 2, in some embodiments, the pressing member 300 is spherical. The pressing member 300 may be in a spherical shape, the rolling effect of the spherical pressing member 300 is good, and gaps are formed among the spherical pressing members 300, so that oxalic acid ash can conveniently fall to the lower layer of the storage cavity 110 from the gaps.
The above-mentioned heating effect is better when heating the solid oxalic acid, and the solid oxalic acid is gasified faster. Therefore, the material of the pressing member 300 may be set to be a heat conductive material, so that the pressing member 300 may conduct heat to the solid oxalic acid. This can further improve the heating efficiency. Specifically, referring to fig. 2, in some embodiments, the pressing member 300 is made of a heat conductive material. The compact 300 does not change the characteristics of the solid oxalic acid, does not participate in the reaction in the storage chamber 110, and only functions as a heat conduction. The heat conducting material may be metal material, ceramic material, etc. When the material of the pressing member 300 is selected to be a metal material or a ceramic material, the pressing member 300 has a good heat conduction effect, and the pressing member 300 has wear-resistant characteristics and has a long service life, thereby saving cost.
The specific structure of the stirring member 410 will be described below. Specifically, referring to fig. 3, 4 and 5, the pressing member 300 is omitted in fig. 3, and in some embodiments, the stirring member 410 includes a body 411 and a plurality of sweep bars 412, and the sweep bars 412 include opposite first ends 413 and second ends 414. The first end 413 of the sweep bar 412 is connected to the body 411, and the body 411 is fixedly connected to the driving member 420. For example, the body 411 is connected to a motor, and the motor drives the body 411 to rotate together with the scan shaft 412. The sweep bar 412 may be bar-shaped, and the stirring member 410 may be formed in a spiral shape after the plurality of sweep bars 412 are coupled to the body 411. This can improve the stirring efficiency while having a good stirring effect, and can also allow the compact 300 and the solid oxalic acid to sufficiently move. After the pressing member 300 and the solid oxalic acid sufficiently move, a rapid separation of the pressing member 300 and the oxalic acid ash can be achieved, i.e., the pressing member 300 is positioned at the upper layer of the storage chamber 110, and the oxalic acid ash is positioned at the lower layer of the storage chamber 110.
Further, referring to fig. 3, in some embodiments, the pressing member 300 is spherical, the diameter of the pressing member 300 is D, and the distance between the second end 414 of the sweeping rod 412 and the sidewall of the storage cavity 110 is L1, and 3D is equal to or less than L1 and equal to or less than 4D. Assuming that the molding 300 is a steel ball having a diameter of 2cm, the distance between the second end 414 of the sweep bar 412 and the sidewall of the storage chamber 110 may be 6cm to 8cm. When the oxalic acid ash is accumulated in the storage chamber 110 too much, the distance L1 can ensure that the pressing member 300 can still be driven to move by the stirring member 410, so that the pressing member 300 can be located above the oxalic acid ash. In short, if the distance between the second end 414 of the sweep bar 412 and the sidewall of the storage chamber 110 is less than 6cm, a portion of the press 300 will be blocked between the second end 414 and the sidewall of the storage chamber 110 when oxalic acid ash is excessively accumulated. If the distance between the second end 414 of the sweep bar 412 and the sidewall of the storage chamber 110 is greater than 8cm, the excessive gap will prevent the pressing member 300 near the sidewall of the storage chamber 110 from being moved by the sweep bar 412, so that the separation effect of the pressing member 300 and the oxalic acid ash is poor, and the oxalic acid ash may enter the catalytic degreasing furnace.
Further, if the sweep bar 412 contacts the bottom wall of the storage cavity 110, once the compression 300 in the storage cavity 110 breaks, debris is generated, which can be located between the sweep bar 412 and the bottom wall of the storage cavity 110, thereby breaking the sweep bar 412. Therefore, a certain distance needs to be provided between the bottom surface 415 of the scan bar 412 and the bottom wall of the storage cavity 110. Specifically, referring to fig. 3, in some embodiments, the pressing member 300 is spherical, the diameter of the pressing member 300 is D, the distance between the bottom surface 415 of the sweeping bar 412 and the bottom wall of the storage cavity 110 is L2, l2=d (1+k), and k=0.1-0.5. Specifically, a gap is provided between the bottom surface 415 of the scan bar 412 and the bottom wall of the storage cavity 110, and the distance of the gap is L2. Assuming that the pressing member 300 is a steel ball having a diameter of 2cm, L2 may be 2.2cm to 3cm. If L2 is less than 2,2cm, too little clearance may result in the molding 300 being trapped between the sweep bar 412 and the bottom wall of the storage chamber 110, thereby preventing movement of the sweep bar 412. If L2 is greater than 3cm, the excessive clearance may cause a part of the pressing member 300 to be unable to be moved by the sweeping bar 412, thereby making the separation of the pressing member 300 and the oxalic acid ash poor, and thus the oxalic acid ash may be introduced into the catalytic degreasing furnace.
Further, referring to fig. 6, in some embodiments, the cross section of the sweep bar 412 is triangular, the sweep bar 412 includes a bottom surface 415 and two inclined surfaces 416, two ends of the bottom surface 415 are respectively connected to one ends of the two inclined surfaces 416, one ends of the two inclined surfaces 416 away from the bottom surface 415 are connected to each other, and an included angle α between the inclined surfaces 416 and the bottom surface 415 is greater than or equal to 35 ° and less than or equal to 50 °. After the inclined surface 416 is provided on the sweeping rod 412, the pressing member 300 and the oxalic acid ash can be sufficiently moved by the inclined surface 416 when the sweeping rod 412 moves and the pressing member 300 is driven to move, so that the oxalic acid ash and the pressing member 300 are layered. The angle of the inclined surface 416 is between 35 ° and 50 °, so that the sweeping rod 412 can drive the pressing member 300 to move most effectively. If the angle of the inclined surface 416 is smaller than 35 ° or larger than 50 °, when the sweep bar 412 moves, the sweep bar 412 may not drive the pressing member 300 to move well, for example, when the sweep bar 412 rotates, the movement speed of the pressing member 300 tends to zero.
Further, referring to fig. 6 and 7, in some embodiments, the pressing member 300 is spherical, the diameter of the pressing member 300 is D, the sweep bar 412 further includes a first transition surface 417 and a second transition surface 418, one end of the first transition surface 417 is perpendicularly connected to the bottom surface 415, the other end of the first transition surface 417 is connected to the inclined surface 416, two ends of the second transition surface 418 are respectively connected to the two inclined surfaces 416, the widths of the first transition surface 417 and the second transition surface 418 are L3, and L3 is not less than 0.1D and not more than 0.3D. Specifically, by providing the first transition surface 417 and the second transition surface 418 on the sweeping rod 412, one end of the first transition surface 417 is perpendicularly connected to the bottom surface 415, the other end of the first transition surface 417 is connected to the inclined surface 416, and two ends of the second transition surface 418 are respectively connected to the two inclined surfaces 416. This can increase the strength of the sweep bar 412, and ensure that the sweep bar 412 is not damaged by the rotation of the press 300 when the strength of the press 300 is high. Furthermore, the first transition surface 417, the second transition surface 418 and the inclined surface 416 may cooperate to achieve the effect of jointly driving movement of the compression member 300. For example, when the sweeping bar 412 rotates, the first transition surface 417 just pushes the middle portion of the second laminated product 300, so that the second laminated product 300 pushes the lower laminated product 300 to roll, thus effectively avoiding the clamping phenomenon of the laminated product 300, and simultaneously, the heat generated by the bottom wall of the storage cavity 110 heated by the heating element 200 is brought to the upper side by the lower laminated product 300. Further, assuming that the pressing member 300 is a steel ball having a diameter of 2cm, L3 may be 0.2cm to 0.6cm. When the width of the first transition surface 417 and the second transition surface 418 is 0.2cm to 0.6cm, on one hand, this can facilitate the staff to process the sweep bar 412, and on the other hand, after the first transition surface 417 and the second transition surface 418 abut against the pressing member 300, the pressing member 300 can be smoothly transited to the inclined surface 416, so that the sweep bar 412 is rotated to drive the pressing member 300 to move.
Further, referring to fig. 3, in some embodiments, the heating element 200 includes a first heating element 210 and a second heating element 220, the first heating element 210 is thermally connected to the bottom of the main body 100, and the second heating element 220 is thermally connected to the side of the main body 100. Specifically, the temperature of the storage chamber 110 in the main body 100 can be made higher by the first and second heating members 210 and 220, thereby improving heating efficiency and saving time.
In some embodiments, a catalytic degreasing furnace comprises: a furnace body and the gasification apparatus 10 of any one of the above embodiments. The furnace body is provided with a reaction cavity which is used for supporting catalytic degreasing reaction. The gasification device 10 is communicated with the reaction chamber so that gaseous oxalic acid enters the reaction chamber. Specifically, in the gasification device 10, the solid oxalic acid is quantitatively fed into the storage cavity 110 through the discharge port (the discharge port is communicated with the storage cavity 110), after entering the storage cavity 110, the solid oxalic acid can be quickly turned into the bottom of the storage cavity 110 by the pressing part 300, the main body 100 is heated by the heating part 200, the solid oxalic acid can be gasified after meeting high temperature, the solid oxalic acid is gasified at the bottom of the storage cavity 110 and then is decomposed into gaseous oxalic acid and oxalic acid ash, the mass of the gaseous oxalic acid is smaller than that of the oxalic acid ash, the gaseous oxalic acid floats upwards and leaves the storage cavity 110 along with the gas entering through the discharge port, the oxalic acid ash is in a powdery mass and can be left at the bottom of the storage cavity 110, and the pressing part 300 can effectively prevent the oxalic acid ash from leaving the storage cavity 110 along with the gas. In this way, the gasification apparatus 10 can effectively prevent oxalic acid ash from entering the catalytic degreasing furnace. Further, the gasification device 10 is communicated with the reaction chamber, so that less oxalic acid ash is contained in the reaction chamber, and the qualification rate of products processed by the catalytic degreasing furnace is higher.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. A gasification apparatus for gasifying solid oxalic acid to gasify the solid oxalic acid into gaseous oxalic acid and oxalic acid ash, comprising:
the main body is provided with a storage cavity for placing the solid oxalic acid;
the heating piece is connected with the main body in a heat conduction way and is used for heating the solid oxalic acid in the storage cavity;
the stirring assembly comprises a stirring piece and a driving piece, and the driving piece is connected with the stirring piece;
the pressing parts are arranged in the storage cavity, and the volume of the pressing parts is larger than that of the oxalic acid ash;
wherein the driving member is capable of driving the stirring member to move so that the stirring member stirs the solid oxalic acid and the pressing member together.
2. A gasification apparatus in accordance with claim 1 wherein said compacts are spherical.
3. The gasification device of claim 1, wherein the material of the compression element is a thermally conductive material.
4. The gasification device of claim 1, wherein the stirring member comprises a body and a plurality of sweep bars, a first end of the sweep bars being coupled to the body, the body being fixedly coupled to the driving member.
5. The gasification device of claim 4, wherein the extrusion is spherical, the extrusion has a diameter D, and the distance between the second end of the sweep bar and the sidewall of the storage chamber is L1,3D is less than or equal to L1 and less than or equal to 4D.
6. The gasification device of claim 4 wherein the compact is spherical, the diameter of the compact is D, the distance between the bottom surface of the sweep bar and the bottom wall of the storage chamber is L2, l2=d (1+k), and k=0.1 to 0.5.
7. The gasification device according to claim 4, wherein the cross section of the sweeping rod is triangular, the sweeping rod comprises a bottom surface and two inclined surfaces, two ends of the bottom surface are respectively connected with one ends of the two inclined surfaces, which are far away from the bottom surface, are mutually connected, and an included angle between the inclined surfaces and the bottom surface is alpha and is more than or equal to 35 degrees and less than or equal to 50 degrees.
8. The gasification device of claim 7, wherein the pressed piece is spherical, the diameter of the pressed piece is D, the sweeping rod further comprises a first transition surface and a second transition surface, one end of the first transition surface is vertically connected with the bottom surface, the other end of the first transition surface is connected with the inclined surface, two ends of the second transition surface are respectively connected with two inclined surfaces, the widths of the first transition surface and the second transition surface are L3, and L3 is more than or equal to 0.1D and less than or equal to 0.3D.
9. The gasification device of claim 1, wherein the heating element comprises a first heating element thermally coupled to the bottom of the body and a second heating element thermally coupled to the side of the body.
10. The catalytic degreasing furnace is characterized by comprising:
the furnace body is provided with a reaction cavity;
the gasification device according to any one of claims 1 to 9, which is in communication with the reaction chamber such that the gaseous oxalic acid enters the reaction chamber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311518441.6A CN117531226A (en) | 2023-11-14 | 2023-11-14 | Gasification device and catalytic degreasing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311518441.6A CN117531226A (en) | 2023-11-14 | 2023-11-14 | Gasification device and catalytic degreasing furnace |
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| CN117531226A true CN117531226A (en) | 2024-02-09 |
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| CN202311518441.6A Pending CN117531226A (en) | 2023-11-14 | 2023-11-14 | Gasification device and catalytic degreasing furnace |
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| CN (1) | CN117531226A (en) |
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