Wood chip pre-steaming tank

Abstract

The utility model provides a wood chip pre-evaporation tank which comprises a pre-evaporation tank body, a feeding screw rod, a lifting plate, a feeding motor and a wooden plug screw, the lower portion of the pre-evaporation tank body is connected with the wooden plug screw, the feeding screw rod is installed in the middle of the pre-evaporation tank body, the upper portion of the feeding screw rod is connected with the feeding motor, and the lower portion of the feeding screw rod is connected with the wooden plug screw. The lower part of the feeding screw rod extends to the upper part of the spiral joint of the pre-evaporation tank body and the wooden plug; a plurality of guide rods are arranged at the top of the pre-evaporation tank body, the guide rods are parallel to the feeding screw rod, the lifting plate is mounted on the guide rods in a sliding manner, and the feeding motor is mounted at the upper part of the lifting plate. The feeding motor is installed on the lifting plate, the feeding screw can move up and down through the telescopic rod during feeding, the feeding screw can move downwards to make contact with wood chips and push the wood chips to be discharged during material shortage, feeding pushing force can be generated through the spiral plate and the telescopic rod at the same time during feeding, and the material pushing effect is improved; and the problem of material blocking caused by wood chip bridging is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to timber processing technical field especially relates to a wood chip pre -steaming jar. BACKGROUND

[0002] At present, fiberboard mainly takes various wood chips as raw material to produce wood fiber, and the wood chips need to be pre-steamed before being cooked, and the pre-steaming of the wood chips is mainly carried out in a pre-steaming jar, the wood chips are sent into the pre-steaming jar from the upper part through a feeding belt, and then pre-steaming is completed under the heating of 0.2-0.3 MPa steam, after the pre-steaming is completed, the wood chips are sent into a cooking jar through the wood plug screw at the lower part of the pre-steaming jar to complete formal cooking, however, due to the fact that the wood chips are easy to be stuck in the position of the wood plug screw feeding port, the traditional vibrator has poor effect and is easy to cause discharging difficulty, for this reason, people design some auxiliary discharging devices, for example, a double-cone-bottom wood chip pre-steaming jar is disclosed in Chinese patent application No. 202210877862.7, which mainly comprises a pre-steaming jar body, an adjustable speed motor, a speed reducer, a reverse screw, a forward screw and a primary conical bottom; the bottom of the pre-steaming jar body is provided with a secondary conical bottom; the primary conical bottom is installed in the interior of the pre-steaming jar body, and divides the inner cavity of the pre-steaming jar body into a pre-steaming chamber and a feeding chamber; the adjustable speed motor and the speed reducer are installed at the top of the pre-steaming jar body; the reverse screw and the forward screw are installed in the pre-steaming chamber, wherein the top end of the reverse screw is connected with the output shaft of the speed reducer, and the bottom end of the reverse screw is rigidly connected with the top end of the forward screw; the bottom end of the forward screw extends to the bottom outlet of the primary conical bottom. When the device is used, the screw rotates at the upper part of the feeding port to push the wood chips downward, however, the screw of the device can only exert a pushing force after rotating, and the feeding effect is poor, and when the material is insufficient, the screw cannot contact the wood chips at the lower part, so that the pushing force cannot be provided, therefore, a wood chip pre-steaming jar is needed, which is internally provided with a feeding screw rod that can move upward and downward, and can contact the wood chips when the material is insufficient to push the wood chips out and improve the feeding effect. SUMMARY

[0003] In order to solve the above problems, the utility model provides a wood chip pre-steaming jar, which is internally provided with a feeding screw rod that can move upward and downward, and can contact the wood chips when the material is insufficient to push the wood chips out and improve the feeding effect.

[0004] The utility model discloses a wood chip pre-steaming jar that can move upward and downward, and can contact the wood chips when the material is insufficient to push the wood chips out and improve the feeding effect.

[0005] The utility model provides a wood chip pre-steaming tank, include: pre-steaming tank body, feeding screw rod, lifting plate, feeding motor, wood plug spiral, pre-steaming tank body lower part is connected with wood plug spiral, feeding screw rod is installed in pre-steaming tank body middle part, and feeding screw rod upper part is connected with feeding motor, and feeding screw rod lower part derives to the top above pre-steaming tank body and wood plug spiral junction, pre-steaming tank body top is equipped with multiple guide rods, and guide rod is parallel with feeding screw rod, lifting plate sliding installation is in guide rod, and feeding motor is installed in lifting plate upper part, lifting plate lower part is connected with pre-steaming tank body top through telescopic link.

[0006] Further, the feeding motor is connected with the feeding screw rod through a first speed reducer.

[0007] Further, the feeding screw rod lower part is provided with a spiral plate, and the spiral plate is coaxially installed on the feeding screw rod lower part by welding.

[0008] Further, the guide rod is provided with a limiting ring above and below the lifting plate, and the limiting ring is installed on the guide rod by screwing or welding.

[0009] Further, the pre-steaming tank body upper part is provided with a feeding inlet, and a sleeve pipe is arranged between the feeding screw rod and the pre-steaming tank body top.

[0010] Further, the wood plug spiral is provided with a wood plug spiral motor and a second speed reducer on one side, and the wood plug spiral motor is connected with the wood plug spiral through the second speed reducer.

[0011] Further, the telescopic link is a hydraulic telescopic link or an electric telescopic link.

[0012] The utility model has the advantages that: by installing the feeding motor on the lifting plate, the feeding screw rod can be moved up and down through the telescopic link during feeding, and the feeding screw rod can be moved down to contact the wood chip and push the wood chip out during lack of material, the feeding screw rod can generate a feeding thrust through the spiral plate and the telescopic link during feeding, the effect of pushing the material is improved, and the problem of material jamming caused by wood chip bridging is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model is a structural schematic view;

[0014] In the drawing: 1-pre-steaming tank body, 2-feeding screw rod, 3-lifting plate, 4-feeding motor, 5-wood plug spiral, 6-guide rod, 7-telescopic link, 8-first speed reducer, 9-spiral plate, 10-limiting ring, 11-feeding inlet, 12-sleeve pipe, 13-wood plug spiral motor, 14-second speed reducer. DETAILED DESCRIPTION

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Throughout the description, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0017] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0018] like Figure 1 As shown, one embodiment of this utility model provides a wood chip pre-steaming tank, including: a pre-steaming tank body 1, a feeding screw 2, a lifting plate 3, a feeding motor 4, and a wood plug screw 5. The lower part of the pre-steaming tank body 1 is connected to the wood plug screw 5. The feeding screw 2 is installed in the middle of the pre-steaming tank body 1, and the upper part of the feeding screw 2 is connected to the feeding motor 4. The lower part of the feeding screw 2 extends above the connection between the pre-steaming tank body 1 and the wood plug screw 5. The top of the pre-steaming tank body 1 is provided with multiple guide rods 6, which are parallel to the feeding screw 2. The lifting plate 3 is slidably installed on the guide rods 6, and the feeding motor 4 is installed on the upper part of the lifting plate 3. The lower part of the lifting plate 3 is connected to the top of the pre-steaming tank body 1 through a telescopic rod 7.

[0019] When pre-steaming wood chips, the wood chips are fed into the pre-steaming tank body 1 through the feed inlet 11 via a conveyor belt. Steam is then introduced, and the wood chips are softened by the steam. The wood plug screw 5 continuously pushes the wood chips into the cooking chamber from the bottom of the pre-steaming tank body 1, causing the wood chips in the pre-steaming tank body 1 to move downward under the action of gravity. Due to friction and adhesion between the wood chips, bridging can easily form at the connection between the pre-steaming tank body 1 and the wood plug screw 5, making it impossible to feed the wood chips. Therefore, while feeding the wood chips, the feeding motor 4 needs to be started to rotate the feeding screw 2 and drive the spiral plate 9 at the bottom of the feeding screw 2 to rotate, thereby generating a downward thrust on the wood chips and avoiding bridging. Compared with the fixed feeding screw 2, the feeding screw 2 of this device can move up and down under the drive of the telescopic rod 7. When pushing the wood chips, the thrust can be generated by the rotation of the spiral plate 9 and the drive of the telescopic rod 7, which improves the efficiency of pushing the wood chips. Furthermore, when the machine needs to be shut down for maintenance or other reasons, the pre-steaming tank body 1 will be short of material due to the cessation of wood chip feeding. The telescopic rod 7 can be moved down so that the telescopic rod 7 can completely push the wood chips at the bottom of the pre-steaming tank body 1 into the wood plug screw 5, thus avoiding waste of residual material and problems that affect maintenance.

[0020] Preferably, the feeding motor 4 is connected to the feeding screw 2 through the first reducer 8. The first reducer 8 can amplify the torque, so that the feeding screw 2 can drive the spiral plate 9 to rotate, thereby generating axial thrust and pushing the wood chips from the pre-steaming tank body 1 into the wood plug spiral 5.

[0021] Specifically, a spiral plate 9 is provided at the lower part of the feeding screw 2. The spiral plate 9 is coaxially installed at the lower part of the feeding screw 2 by welding. The feeding screw 2 drives the spiral plate 9 to rotate under the drive of the feeding motor 4, thereby applying a downward thrust to the wood chips through the spiral plate 9, accelerating the discharge of materials and avoiding the problem of wood chips bridging.

[0022] In one specific embodiment, the guide rod 6 is provided with limiting rings 10 above and below the lifting plate 3. The limiting rings 10 are installed on the guide rod 6 by threads or welding, which can prevent the lifting plate 3 from slipping off the guide rod 6, and at the same time prevent the lifting plate 3 from falling too far and causing the lower part of the feeding screw 2 to hit the pre-steam tank body 1 or the wooden plug screw 5.

[0023] Preferably, the pre-steaming tank body 1 is provided with a feed inlet 11 at the top, so that wood chips can enter the pre-steaming tank body 1 from the feed inlet 11. A sleeve 12 is provided between the feeding screw 2 and the top of the pre-steaming tank body 1. The sleeve 12 is lined with a copper liner or a polytetrafluoroethylene liner. It is soft and has a low coefficient of friction with the stainless steel feeding screw, which can protect the feeding screw 2.

[0024] In a preferred embodiment, a wooden plug screw 5 is provided with a wooden plug screw motor 13 and a second reducer 14 on one side. The wooden plug screw motor 13 is connected to the wooden plug screw 5 through the second reducer 14. The wooden plug screw 5 is driven to rotate by the wooden plug screw motor 13 and the second reducer 14, so that the pre-steamed wood chips are sent into the cooking chamber for formal cooking. The wooden plug screw 5 is conical, which squeezes the wood chips during feeding to reduce the moisture content of the wood chips.

[0025] Preferably, the telescopic rod 7 is a hydraulic telescopic rod or an electric telescopic rod. The telescopic rod 7 provides power to move the lifting plate 3, the feeding motor 4, and the feeding screw 2, thereby improving the efficiency of pushing materials.

[0026] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A wood chip pre-steaming tank, characterized in that, include: The pre-steaming tank body (1), feeding screw (2), lifting plate (3), feeding motor (4), and cork screw (5) are provided. The lower part of the pre-steaming tank body (1) is connected to the cork screw (5). The feeding screw (2) is installed in the middle of the pre-steaming tank body (1). The upper part of the feeding screw (2) is connected to the feeding motor (4). The lower part of the feeding screw (2) extends to the top of the connection between the pre-steaming tank body (1) and the cork screw (5). The top of the pre-steaming tank body (1) is provided with multiple guide rods (6). The guide rods (6) are parallel to the feeding screw (2). The lifting plate (3) is slidably installed on the guide rods (6). The feeding motor (4) is installed on the upper part of the lifting plate (3). The lower part of the lifting plate (3) is connected to the top of the pre-steaming tank body (1) through a telescopic rod (7).

2. The wood chip pre-steaming tank according to claim 1, characterized in that, The feeding motor (4) is connected to the feeding screw (2) through the first reducer (8).

3. A wood chip pre-steaming tank according to claim 1, characterized in that, The lower part of the feeding screw (2) is provided with a spiral plate (9), which is coaxially installed on the lower part of the feeding screw (2) by welding.

4. A wood chip pre-steaming tank according to claim 1, characterized in that, The guide rod (6) is provided with limiting rings (10) above and below the lifting plate (3). The limiting rings (10) are installed on the guide rod (6) by thread or welding.

5. A wood chip pre-steaming tank according to claim 1, characterized in that, The pre-steam tank body (1) is provided with a feed inlet (11) at the top, and a sleeve (12) is provided between the feeding screw (2) and the top of the pre-steam tank body (1).

6. A wood chip pre-steaming tank according to claim 1, characterized in that, The cork screw (5) is provided with a cork screw motor (13) and a second reducer (14) on one side. The cork screw motor (13) is connected to the cork screw (5) through the second reducer (14).

7. A wood chip pre-steaming tank according to claim 1, characterized in that, The telescopic rod (7) is a hydraulic telescopic rod or an electric telescopic rod.

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