CN115284402A - Bipyramid bottom wood chip precooking jar - Google Patents
Bipyramid bottom wood chip precooking jar Download PDFInfo
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- CN115284402A CN115284402A CN202210877862.7A CN202210877862A CN115284402A CN 115284402 A CN115284402 A CN 115284402A CN 202210877862 A CN202210877862 A CN 202210877862A CN 115284402 A CN115284402 A CN 115284402A
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- 239000002023 wood Substances 0.000 title claims abstract description 96
- 238000010411 cooking Methods 0.000 claims abstract description 91
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000005507 spraying Methods 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 239000007799 cork Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011094 fiberboard Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
Abstract
The invention discloses a double-cone bottom wood chip pre-cooking cylinder which mainly comprises a pre-cooking cylinder body, a speed-adjustable motor, a speed reducer, a reverse spiral, a forward spiral and a primary conical bottom, wherein the speed-adjustable motor is connected with the speed reducer; the bottom of the pre-cooking cylinder body is provided with a secondary conical bottom; the primary conical bottom is arranged in the pre-cooking cylinder body, and an inner cavity of the pre-cooking cylinder body is divided into a pre-cooking chamber and a feeding chamber; the speed-adjustable motor and the speed reducer are arranged on the top of the pre-cooking cylinder body; the reverse spiral and the forward spiral are arranged in the pre-cooking chamber, wherein the top end of the reverse spiral is connected with an output rotating shaft of the speed reducer, and the bottom end of the reverse spiral is rigidly connected with the top end of the forward spiral; the bottom end of the forward spiral extends to the bottom outlet of the primary conical bottom. The invention provides a novel structure of the precooking cylinder for enterprises, fundamentally solves the problems of wood chip bridging of the precooking cylinder and steam back-spraying of a feeding mechanism, reduces the production energy consumption and equipment abrasion of the enterprises and improves the production efficiency of the enterprises.
Description
Technical Field
The invention belongs to the technical field of wood board production and processing, and particularly relates to a double-cone bottom wood chip pre-cooking cylinder.
Background
Artificial medium (high) density fiberboard is an important engineering material and is widely applied to the fields of furniture manufacture, vehicles, ships, buildings, indoor and outdoor decoration and the like. During the production process of the medium (high) density fiberboard, raw material wood chips need to be steamed and boiled to soften the raw material wood chips, which is beneficial to grinding wood fibers. In order to reduce the energy consumption of the defibrator and reduce the cooking time of the wood chips in the cooking cylinder and improve the production efficiency, enterprises generally use waste steam to pre-cook the wood chips before the wood chips enter the defibrator cooking cylinder so as to soften the wood chips primarily. The precooking of wood chips is usually carried out in a precooking vat. In order to match the size of the feeding spiral feeding hole of the cooking cylinder, the pre-cooking cylinder needs to be made into a structure with a large upper part and a small lower part, and the structure with the large upper part and the small lower part easily causes the phenomenon that wood chips form an arch bridge at the discharging hole at the lower part of the pre-cooking cylinder (see figure 1), so that the wood chips cannot normally enter the feeding spiral (wood plug spiral). Once the feeding screw (wood plug screw) is short of the material, the wood plug can not be formed at the position of the outer plug pipe, so that high-temperature and high-pressure steam in the cooking cylinder is sprayed out from the position of the outer plug pipe through the channel of the feeding screw (wood plug screw) to cause a reverse spraying phenomenon, and once the reverse spraying phenomenon occurs, the cooking cylinder can not normally work due to the loss of the steam and the pressure, and finally the production line is stopped. Aiming at the phenomenon, enterprises adopt different methods to solve the problem of bridging of the pre-cooking vat: some enterprises adopt two oscillators (see figure 1) symmetrically arranged on the outer side of the conical bottom of the precooking cylinder to prevent wood chips from bridging through oscillation, however, the method not only has high noise, but also can cause the wood chips in the cylinder to be more firmly vibrated, and on the contrary, the wood chips in the cylinder are more easily bridged. Other enterprises adopt a unidirectional vertical spiral to forcibly feed the wood plug; for example, the Chinese patent application No. 201821044717.6 discloses a precooking cylinder capable of preventing wood chips from bridging, which comprises a cylinder body, a feed opening arranged at the top of the cylinder body, a discharge opening arranged at the bottom of the cylinder body, a forced screw rotatably arranged on a central shaft of the cylinder body, and a driving mechanism fixed at the top of the cylinder body and used for driving the forced screw to rotate; the upper end of the forced spiral is connected with the driving mechanism through a coupler, and the lower end of the forced spiral extends to the upper part of the discharge hole; the driving mechanism is coupled with the wooden plug spiral through a PLC control system. For another example, the chinese patent application No. 202120242469.1 discloses a cooking vat blanking mechanism, which comprises a pre-cooking vat, wherein the top of the pre-cooking vat is provided with a wood chip feeding port, and the bottom of the pre-cooking vat is provided with a wood chip discharging port; the top of the precooking cylinder is also provided with a spiral driving motor, a vertical screw rod is arranged in the precooking cylinder, the top end of the vertical screw rod is connected with the transmission output end of the spiral driving motor through a coupler, the lower end of the vertical screw rod is positioned above the wood chip discharge hole and is provided with spiral blades, and the rotation of the spiral blades can realize the stable discharge of the wood chips; and the bottom of the vertical screw is provided with light sensation feedback electronic equipment for monitoring whether the wood chip discharge hole is blocked. However, this method can subject the wooden plug screw to strong additional pressure, which accelerates the wear of the wooden plug screw and greatly increases the energy consumption. At present, various measures for preventing wood chip bridging adopted by enterprises have little effect. Enterprises are expected to fundamentally solve the problem of wood chip bridging of the precooking vat.
Disclosure of Invention
The invention aims to provide a double-cone bottom wood chip pre-cooking cylinder. The invention provides a novel structure of a precooking cylinder and a method for preventing wood chip bridging for enterprises, fundamentally solves the problem of wood chip bridging of the precooking cylinder and the problem of steam back-spraying of a feeding mechanism, reduces the production energy consumption and equipment abrasion of the enterprises and improves the production efficiency of the enterprises.
In order to achieve the purpose, the invention adopts the following technical scheme:
a double-cone bottom wood chip pre-cooking cylinder mainly comprises a pre-cooking cylinder body, a speed-adjustable motor, a speed reducer, a reverse spiral, a forward spiral and a primary conical bottom; the bottom of the pre-cooking cylinder body is provided with a secondary conical bottom; the primary conical bottom is arranged in the pre-cooking cylinder body, and an inner cavity of the pre-cooking cylinder body is divided into a pre-cooking chamber and a feeding chamber; the speed-adjustable motor and the speed reducer are arranged on the top of the pre-cooking cylinder body; the reverse spiral and the forward spiral are arranged in the pre-cooking chamber, wherein the top end of the reverse spiral is connected with an output rotating shaft of the speed reducer, and the bottom end of the reverse spiral is rigidly connected with the top end of the forward spiral; the bottom end of the forward spiral extends to the bottom outlet of the primary conical bottom.
As a further preferable refinement of the present invention, the length ratio of the reverse helix to the forward helix is 3:1.
As a further preferable refinement of the invention, the taper angles of the primary and secondary tapered bottoms are both 75 °.
As a further explanation of the invention, the lower part of the precooking cylinder body is provided with an observation port for observing the accumulation condition of the wood chips in the feeding chamber.
As a further explanation of the invention, the speed-adjustable motor drives the reverse spiral and the forward spiral to rotate through the speed reducer; the wood chips at the middle upper part in the pre-cooking chamber move upwards by the rotation of the reverse spiral, so that the wood chips are loosened; the forward spiral rotates to make the wood chips in the lower part of the precooking chamber move downwards and quantitatively feed the wood chips to the feeding chamber through the bottom outlet of the first-stage conical bottom.
As a further explanation of the invention, the top of the pre-cooking cylinder body is provided with a feeding hole; the bottom of the precooking cylinder body (namely the bottom outlet of the secondary conical bottom) is a discharge hole and is communicated with a feeding groove of the wood plug screw.
Compared with the prior art (such as patent application numbers 201821044717.6 and 202120242469.1), the innovation points of the invention are as follows:
1. the invention relates to a double-cone bottom wood chip pre-cooking cylinder, which adopts a double-cone bottom structure structurally, namely, a primary conical bottom is added, and the inner cavity of the pre-cooking cylinder is divided into two areas, namely a pre-cooking chamber and a feeding chamber. Wherein the pre-cooking chamber is used for pre-cooking the wood chips, and the feeding chamber is used for providing conditions for realizing continuous, quantitative and free feeding of the corkscrew; the free feeding enables the cork screw to be free from additional feeding pressure, and the service life is prolonged. And the prior art that patent application numbers are 201821044717.6 and 202120242469.1 sets up one-way vertical spiral leaf directly in the cylinder body, though the bridging phenomenon has been solved to a certain extent in the beginning, it is directly to the wooden plug spiral reinforced by force, can produce huge extra feeding pressure to the wooden plug spiral, even when the feed rate is greater than wooden plug spiral feed rate, will lead to the precooking cylinder body bottom export the timber more, the more compact more, finally lead to unable smooth feeding, the phenomenon that the machine shut down.
2. The invention relates to a double-cone bottom wood chip pre-cooking cylinder, which is additionally provided with a set of speed-adjustable bidirectional spiral feeding device, wherein the device comprises a speed-adjustable motor, a speed reducer, a reverse spiral, a forward spiral and the like. The speed-adjustable motor and the speed reducer are used for providing a power source with adjustable speed for the feeding device. The feeding amount is increased when the rotating speed of the motor is increased, the feeding amount is reduced when the rotating speed of the motor is reduced, and the feeding amount is set according to the production amount. The reverse spiral function is to make the wood chips in the precooking chamber move upwards, so as to achieve the purpose of loosening the wood chips and reducing the feeding resistance. The forward screw is used for quantitatively and uniformly feeding materials into the feeding chamber according to the rotating speed set by the speed-adjustable motor, so that sufficient materials can be quantitatively and uniformly obtained by the wood plug screw, and the wood chips can form sufficiently dense wood plugs at the outer plug pipe, thereby avoiding the occurrence of a reverse spraying phenomenon.
3. The invention relates to a double-cone bottom wood chip pre-cooking cylinder, which has the key technology that wood chips cannot bridge when a wood plug is fed spirally, and comprises the following steps: the method successfully utilizes the forward spiral to feed the materials to the feeding chamber quantitatively and uniformly, the feeding amount is balanced with the demand of the wood plug spiral, so a large amount of wood chips are not accumulated in the feeding chamber, because the wood chips are less and loose, and the pressure to the secondary conical bottom is small, enough friction force required for forming an arch pier cannot be provided on the secondary conical bottom in the feeding chamber all the time, and a bridge cannot be built naturally, thereby fundamentally solving the problem of wood chip bridging of the pre-cooking cylinder.
The invention has the advantages that:
the structure design of the invention is scientific and reasonable, simple and feasible, and can fundamentally solve the problem of wood chip bridging in the pre-cooking vat. The primary conical bottom is additionally arranged in the pre-cooking cylinder, and the primary conical bottom and the secondary conical bottom at the bottom of the pre-cooking cylinder form a double-conical bottom structure together, so that the inner cavity of the pre-cooking cylinder is divided into two cavities, namely a pre-cooking chamber and a feeding chamber; the reverse screw and the forward screw are arranged in the precooking chamber, so that the wood chips on the middle upper part move upwards to keep the loose state of the wood chips, the wood chips on the lower part move downwards to smoothly enter the feeding chamber, the quantity of the wood chips in the feeding chamber is controllable, and the bridging phenomenon caused by overstocked wood chips is avoided.
Drawings
FIG. 1 is a schematic representation of a chip precooking vat structure and its chip "bridging" phenomenon in the prior art.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals are as follows: 1-belt conveyer, 2-wood chip, 3-speed-adjustable motor, 4-speed reducer, 5-precooking cylinder body, 6-reverse screw, 7-forward screw, 8-first-stage conical bottom, 9-air inlet pipe I, 10-second-stage conical bottom, 11-observation port, 12-pressure gauge, 13-air inlet pipe II, 14-back spray prevention device, 15-cooking cylinder, 16-outer plug pipe, 17-dehydration sleeve, 18-wood plug screw, 19-large bearing, 20-speed reducer, 21-direct current motor, 22-precooking chamber, 23-feeding chamber, 24-vibrator and 25-wood chip bridge.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1:
a double-cone bottom wood chip pre-cooking cylinder mainly comprises a pre-cooking cylinder body 5, a speed-adjustable motor 3, a speed reducer 4, a reverse spiral 6, a forward spiral 7 and a primary conical bottom 8; the bottom of the pre-cooking cylinder body 5 is provided with a secondary conical bottom 10; the primary conical bottom 8 is arranged in the pre-cooking cylinder body 5, and divides the inner cavity of the pre-cooking cylinder body 5 into a pre-cooking chamber 22 and a feeding chamber 23; the cone angles of the primary conical bottom 8 and the secondary conical bottom 10 are both 75 degrees, and the adjustable speed motor 3 and the speed reducer 4 are arranged at the top of the pre-cooking cylinder body 5; the reverse screw 6 and the forward screw 7 are arranged in the pre-cooking chamber 22, wherein the top end of the reverse screw 6 is connected with the output rotating shaft of the speed reducer 4, and the bottom end of the reverse screw 6 is rigidly connected with the top end of the forward screw 7; the bottom end of the forward spiral 7 extends to the bottom outlet of the primary conical bottom 8, and the length ratio of the reverse spiral 6 to the forward spiral 7 is 3:1.
Example 2:
a double-cone bottom wood chip pre-cooking cylinder mainly comprises a pre-cooking cylinder body 5, a speed-adjustable motor 3, a speed reducer 4, a reverse spiral 6, a forward spiral 7 and a primary conical bottom 8; the bottom of the pre-cooking cylinder body 5 is provided with a secondary conical bottom 10; the primary conical bottom 8 is arranged in the pre-cooking cylinder body 5, and divides the inner cavity of the pre-cooking cylinder body 5 into a pre-cooking chamber 22 and a feeding chamber 23; the cone angles of the primary conical bottom 8 and the secondary conical bottom 10 are both 75 degrees, and the adjustable speed motor 3 and the speed reducer 4 are arranged at the top of the pre-cooking cylinder body 5; the reverse screw 6 and the forward screw 7 are arranged in the pre-cooking chamber 22, wherein the top end of the reverse screw 6 is connected with the output rotating shaft of the speed reducer 4, and the bottom end of the reverse screw 6 is rigidly connected with the top end of the forward screw 7; the bottom end of the forward spiral 7 extends to the bottom outlet of the primary conical bottom 8, and the length ratio of the reverse spiral 6 to the forward spiral 7 is 3:1.
The speed-adjustable motor 3 drives the reverse spiral 6 and the forward spiral 7 to rotate through the speed reducer 4; wherein, the reverse screw 6 rotates to make the wood chips at the middle upper part in the precooking chamber 22 move upwards to loosen the wood chips; the rotation of the forward screw 7 causes the chips in the lower part of the precooking chamber 22 to move downwards and to be quantitatively fed into the feeding chamber 23 through the bottom outlet of the primary conical bottom 8.
Example 3:
a double-cone bottom wood chip pre-cooking cylinder mainly comprises a pre-cooking cylinder body 5, a speed-adjustable motor 3, a speed reducer 4, a reverse spiral 6, a forward spiral 7 and a primary conical bottom 8; the bottom of the pre-cooking cylinder body 5 is provided with a secondary conical bottom 10; the primary conical bottom 8 is arranged in the pre-cooking cylinder body 5, and divides the inner cavity of the pre-cooking cylinder body 5 into a pre-cooking chamber 22 and a feeding chamber 23; the cone angles of the primary conical bottom 8 and the secondary conical bottom 10 are both 75 degrees, and the adjustable speed motor 3 and the speed reducer 4 are arranged at the top of the pre-cooking cylinder body 5; the reverse screw 6 and the forward screw 7 are arranged in the pre-cooking chamber 22, wherein the top end of the reverse screw 6 is connected with the output rotating shaft of the speed reducer 4, and the bottom end of the reverse screw 6 is rigidly connected with the top end of the forward screw 7; the bottom end of the forward spiral 7 extends to the bottom outlet of the primary conical bottom 8, and the length ratio of the reverse spiral 6 to the forward spiral 7 is 3:1. The lower part of the pre-cooking cylinder body 5 is provided with an observation port 11 for observing the wood chip stacking condition in the feeding chamber 23.
The working principle of the double-cone bottom wood chip pre-cooking cylinder of the embodiment when applied to a wood chip cooking production line is shown in fig. 2:
the wood chips 2 are conveyed into the pre-cooking cylinder 5 through the belt conveyer 1, and the wood chips entering the pre-cooking cylinder 5 are supported by the primary conical bottom 8. After the wood chips in the cylinder reach the preset height, the speed-adjustable motor 3 is started, and the reverse screw 6 and the forward screw 7 are driven to rotate through the speed reducer 4. At the same time, the dc motor 21 is started to rotate the corkscrew (feed screw) 18. Wherein the rotation of the reverse screw 6 moves the wood chips in the cylinder upwards to loosen the wood chips, and the rotation of the forward screw 7 moves the wood chips downwards to quantitatively feed the wood chips into the feeding chamber 23 through the bottom outlet of the primary conical bottom 8. After entering the feeding chamber 23, the wood chips freely fall into the feeding groove of the cork screw 18, thereby realizing the free feeding of the cork screw 18 instead of forced feeding. The cork screw 18 is a conical screw with a compression ratio of 2.5, and compresses the wood chips in the process of conveying the wood chips to the cooking cylinder 15, so that the wood chips form a compact 'cork' at the position of the outer cork pipe 16 (a feed inlet of the cooking cylinder 15), and the effect of plugging the feed inlet of the cooking cylinder 15 to prevent high-temperature and high-pressure steam in the feed inlet from leaking out is achieved, and the air pressure and the temperature in the cooking cylinder 15 are not influenced by feeding materials.
In the production, if the wood chips in the precooking cylinder body 5 can not be normally and continuously fed to the wooden plug screw 18 quantitatively due to the reasons of bridging and the like, the wooden plug screw 18 can not form a compact wooden plug at the position of the outer plug pipe 16 (the feed inlet of the cooking cylinder 15) due to insufficient materials, and at the moment, high-temperature and high-pressure gas in the cooking cylinder 15 is sprayed out from the outer plug pipe 16, which is the phenomenon known as back spraying in the industry. The double-cone bottom wood chip pre-cooking cylinder thoroughly solves the problem of wood chip bridging, ensures that the wood plug screw 18 does not generate the phenomenon of back spraying caused by wood chip supply interruption, and ensures the normal production of a production line.
It should be understood that the above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the practice of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description; it is not necessary or exhaustive for all embodiments to be presented herein; and obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (3)
1. The utility model provides a bipyramid end wood piece precooking jar which characterized in that: mainly comprises a pre-cooking cylinder body (5), a speed-adjustable motor (3), a speed reducer (4), a reverse spiral (6), a forward spiral (7) and a primary conical bottom (8);
the bottom of the pre-cooking cylinder body (5) is provided with a secondary conical bottom (10); the cone angles of the primary conical bottom (8) and the secondary conical bottom (10) are both 75 degrees;
the primary conical bottom (8) is arranged in the pre-cooking cylinder body (5) to divide the inner cavity of the pre-cooking cylinder body (5) into a pre-cooking chamber (22) and a feeding chamber (23);
the adjustable speed motor (3) and the speed reducer (4) are arranged at the top of the pre-cooking cylinder body (5);
the reverse screw (6) and the forward screw (7) are arranged in the pre-cooking chamber (22), wherein the top end of the reverse screw (6) is connected with an output rotating shaft of the speed reducer (4), and the bottom end of the reverse screw (6) is rigidly connected with the top end of the forward screw (7); the bottom end of the forward spiral (7) extends to the bottom outlet of the primary conical bottom (8); the length ratio of the reverse spiral (6) to the forward spiral (7) is 3:1.
2. The double-cone-bottom wood piece precooking cylinder of claim 1, characterized in that: the speed-adjustable motor (3) drives the reverse spiral (6) and the forward spiral (7) to rotate through the speed reducer (4); wherein the reverse screw (6) rotates to enable the wood chips at the middle upper part in the precooking chamber (22) to move upwards so as to loosen the wood chips; the forward screw (7) rotates to make the wood chips at the lower part in the precooking chamber (22) move downwards and quantitatively feed into the feeding chamber (23) through the bottom outlet of the primary conical bottom (8).
3. The double-cone-bottom wood piece precooking cylinder of claim 1, characterized in that: the lower part of the pre-cooking cylinder body (5) is provided with an observation port (11) for observing the wood chip stacking condition in the feeding chamber (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877862.7A CN115284402B (en) | 2022-07-25 | 2022-07-25 | Double-cone-bottom wood chip pre-cooking cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877862.7A CN115284402B (en) | 2022-07-25 | 2022-07-25 | Double-cone-bottom wood chip pre-cooking cylinder |
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| Publication Number | Publication Date |
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| CN115284402A true CN115284402A (en) | 2022-11-04 |
| CN115284402B CN115284402B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210877862.7A Active CN115284402B (en) | 2022-07-25 | 2022-07-25 | Double-cone-bottom wood chip pre-cooking cylinder |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554824A (en) * | 2003-12-20 | 2004-12-15 | 施品华 | Artificial plate wooden sheet no-bridge preheating bunker and anti-blocking method |
| CN2704603Y (en) * | 2003-12-20 | 2005-06-15 | 施品华 | Pre-heating stock bin of plywood sheets against pile-up block |
| CN102493241A (en) * | 2011-12-16 | 2012-06-13 | 中国林业科学研究院林产化学工业研究所 | Wood chip extrusion method and equipment for chemimechanical pulping |
| CN104846676A (en) * | 2015-05-25 | 2015-08-19 | 南宁糖业股份有限公司 | Method of producing bleached chemi-mechanical pulp from Eucalyptus sheets |
-
2022
- 2022-07-25 CN CN202210877862.7A patent/CN115284402B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554824A (en) * | 2003-12-20 | 2004-12-15 | 施品华 | Artificial plate wooden sheet no-bridge preheating bunker and anti-blocking method |
| CN2704603Y (en) * | 2003-12-20 | 2005-06-15 | 施品华 | Pre-heating stock bin of plywood sheets against pile-up block |
| CN102493241A (en) * | 2011-12-16 | 2012-06-13 | 中国林业科学研究院林产化学工业研究所 | Wood chip extrusion method and equipment for chemimechanical pulping |
| CN104846676A (en) * | 2015-05-25 | 2015-08-19 | 南宁糖业股份有限公司 | Method of producing bleached chemi-mechanical pulp from Eucalyptus sheets |
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|---|---|
| CN115284402B (en) | 2024-02-06 |
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