Bamboo raw material recovery system

Abstract

The embodiment of the utility model provides a bamboo raw material recovery system which comprises a hydrolysis reaction tank, a double-screw conveying device, an inclined wire dehydrator and a pumping spraying system, the pumping and spraying system comprises a water collecting tank arranged on the lower side of the inclined net, a spray head arranged in the hydrolysis reaction tank and a pumping device connected with the spray head and the water collecting tank, and the pumping system is configured to convey spraying water in the water collecting tank to the spray head and spray the spraying water into the hydrolysis reaction tank through the spray head; by means of the arrangement, on one hand, 'bridging 'balance can be broken, on the other hand, the bamboo raw materials can be rapidly washed downwards under the spraying and washing effect, meanwhile, the bamboo raw materials can be rapidly discharged without being limited by the size of the bamboo raw materials through spiral conveying, and in addition, the bamboo raw materials can be rapidly discharged. In this way, the repeated use of the shower water is also realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bamboo raw material recycling system, especially to the bamboo raw material recycling system after hydrolysis. BACKGROUND

[0002] In the production process of xylose and xylo-oligosaccharide, the discharge of hydrolysis residue is a relatively difficult thing, at present, the common technology is that the raw material is crushed into particles with a particle size of about 0.5mm, then steam is introduced, the pressure is increased to 1-2kg, and then the residue is discharged by fast pressure discharge, this technology process is relatively short, and the speed is also fast, but the steam cost is large, the operation environment is poor, a large amount of flash steam is generated during residue discharge, and it is only suitable for materials with small residue particles and low density.

[0003] However, after the bamboo chip raw material is extracted by hydrolysis, the density is still large, and the size is uneven, usually the size is about 5cm*2cm*0.5cm, this form determines that the discharge speed is slow and water vapor goes first, and the material piece bridging phenomenon occurs, so it is difficult to discharge the bamboo chip to the outside of the reaction tank by the conventional steam internal pressure discharge form.

[0004] Therefore, it is necessary to develop a system capable of recycling the bamboo raw material after the hydrolysis process. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a bamboo raw material recycling system to solve the above technical problems.

[0006] A bamboo raw material recycling system, comprising a hydrolysis reaction tank, a double-spiral conveying device and an inclined net dewatering machine;

[0007] The hydrolysis reaction tank is used for hydrolyzing the raw bamboo material to form a hydrolysis liquid and a bamboo raw material;

[0008] The double-spiral conveying device is arranged on the lower side of the hydrolysis reaction tank and is used for conveying the bamboo raw material downstream;

[0009] The inclined net dewatering machine comprises an inclined net and a side spiral conveying device arranged on one side of the inclined net;

[0010] The double-spiral conveying device comprises a pair of spiral conveyors, the spiral conveyor comprises a central shaft and a conveying blade spirally arranged on the central shaft, and the conveying blades of the pair of spiral conveyors are arranged in opposite directions;

[0011] The bamboo raw material recycling system further comprises a pumping and spraying system, the pumping and spraying system comprises a water collecting tank arranged at the lower side of the inclined screen, a spray head arranged in the hydrolysis reaction tank and a pumping device connecting the spray head and the water collecting tank, the pumping system is configured to transport the spraying water in the water collecting tank to the spray head and spray the spraying water into the hydrolysis reaction tank by the spray head, and the inclined screen is configured to receive and separate the bamboo raw material and the spraying water.

[0012] The hydrolysis reaction tank comprises a tank wall and an accommodation space surrounded by the tank wall, the spray head sprays the spraying water in a first direction, if a tangent line is defined as being tangent to the tank wall at the position corresponding to the spray head, and the included angle between the first direction and the tangent line is alpha, then alpha is 30°-45°.

[0013] The included angle between the first direction and the horizontal plane is-3°-3°.

[0014] The spray head comprises a spray hole, and the diameter of the spray hole is 3-5 mm.

[0015] The double-spiral conveying device further comprises a discharging channel arranged below the discharge port, the discharging channel comprises a first channel and a second channel, the first channel comprises a first discharge port for discharging the bamboo raw material, the second channel comprises a second discharge port for discharging the bamboo raw material, and the inclined screen is arranged directly below the first discharge port and the second discharge port.

[0016] The inclined screen is a vibrating screen.

[0017] The included angle between the inclined screen and the horizontal plane is 30°-60°.

[0018] The pair of spiral conveyors comprises a first spiral conveyor and a second spiral conveyor, the outer diameter of the first spiral conveyor is 400-800 mm, and the pitch of the conveying blade is 200-400 mm.

[0019] Beneficial effects: the bamboo raw material recycling system provided by the embodiment of the utility model, comprising a hydrolysis reaction tank, a double-spiral conveying device and an inclined screen dewatering machine, the bamboo raw material recycling system further comprises a pumping and spraying system, the pumping and spraying system comprises a water collecting tank arranged at the lower side of the inclined screen, a spray head arranged in the hydrolysis reaction tank and a pumping device connecting the spray head and the water collecting tank, the pumping system is configured to transport the spraying water in the water collecting tank to the spray head and spray the spraying water into the hydrolysis reaction tank by the spray head, and the inclined screen is configured to receive and separate the bamboo raw material and the spraying water, by the above arrangement, on the one hand, the "bridge" balance can be broken, and on the other hand, the bamboo raw material is rapidly flushed downward under the action of spraying flushing, and the bamboo raw material can be rapidly discharged without being limited by the size of the bamboo raw material by the spiral conveying, in addition, the spraying water can be reused in this way. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The bamboo raw material recycling system structural schematic diagram of the utility model;

[0021] Figure 2 For Figure 1 The A direction schematic diagram of;

[0022] Figure 3 For Figure 1 The B direction schematic diagram of;

[0023] Figure 4 The spray head arrangement schematic diagram on the tank wall;

[0024] Figure 5 For Figure 4 The C area amplification schematic diagram of;

[0025] The hydrolysis reaction tank 10, the accommodating space 11, the tank wall 12, the double helix conveying device 20, the shell 201, the first helix conveyor 21, the first lower outlet 211, the first valve 212, the first discharge port 213, the second helix conveyor 22, the second lower outlet 221, the second valve 222, the second discharge port 223, the inclined net dehydrator 30, the side helix conveying device 40, the water collecting tank 50, the pumping spray system 60, the tangent line 601, the spray head 61, the first direction 611. DETAILED DESCRIPTION

[0026] The bamboo raw material recycling system device of the utility model embodiment provides a kind of, for the bamboo raw material of bamboo raw material after hydrolysis is recycled, the present application will be further described below with reference to the drawings.

[0027] Please refer to Figure 1 The bamboo raw material recycling system, including hydrolysis reaction tank 10, double helix conveying device 20 and inclined net dehydrator 30.

[0028] The hydrolysis reaction tank 10, including tank wall 12 and the accommodating space 11 surrounded by tank wall 12, for hydrolysis to original bamboo material in accommodating space 11 Forming hydrolysate, simultaneously, the original bamboo material is formed bamboo raw material after hydrolysis, it can be understood, the bamboo raw material can be bamboo chips, bamboo powder and bamboo sheet.

[0029] It can be understood that, in the embodiment, the original bamboo material is bamboo sheet, specifically, the bamboo sheet is obtained by slitting bamboo material into 30-60mm long, 15-25mm wide, 4-8mm thick sheet shape, and the bamboo material can be at least one selected from bamboo species such as Phyllostachys nuda, Phyllostachys pubescens, Phyllostachys nigra and Phyllostachys edulis.

[0030] The hydrolysis reaction tank 10 comprises an upper part and a lower part, wherein the upper part is in a cylindrical shape, and the lower part is in a square tapered shape with a large upper part and a small lower part, so as to form a contraction part, so that the hydrolysis liquid and the bamboo raw materials can move downward under the action of gravity through the contraction part, and a liquid discharge port is also arranged below the contraction part, and the hydrolysis liquid can be discharged through the liquid discharge port.

[0031] Please refer to Figure 2 and Figure 3 , the double-spiral conveying device 20 is arranged at the lower side of the hydrolysis reaction tank 10 and is used for conveying the bamboo raw materials downstream, and more specifically, the double-spiral conveying device 20 is arranged at the lower side of the contraction part and comprises a front extension part and a rear extension part, wherein the front extension part is located in the accommodation space 11, and the rear extension part is located outside the accommodation space 11, and it can be understood that the front extension part located in the accommodation space 11 is configured to receive the bamboo raw materials, and the rear extension part comprises a discharge port for discharging the bamboo raw materials conveyed by the double-spiral conveying device 20.

[0032] In the embodiment, the double-spiral conveying device 20 comprises a pair of spiral conveyors, and each of the spiral conveyors comprises a central shaft and a conveying blade spirally arranged on the central shaft, and the conveying blades of the pair of spiral conveyors are arranged in opposite directions, and it can be understood that the rotation directions of the pair of spiral conveyors are opposite during the conveying process, so that each of the spiral conveyors can convey the bamboo raw materials received by the front extension part to the discharge port, and for the convenience of description, the pair of spiral conveyors are respectively referred to as a first spiral conveyor 2221 and a second spiral conveyor, and the first spiral conveyor 2221 is basically identical to the first spiral conveyor 2221 in structure and size, and only the arrangement direction of the conveying blade is opposite, wherein the outer diameter of the first spiral conveyor 2221 is 400-800 mm, and the pitch of the conveying blade is 200-400 mm, and it can be understood that the double-spiral conveying device 20 comprises a shell 201 surrounding the first spiral conveyor 2221 and the second spiral conveyor, and a first conveying channel and a second conveying channel formed by the first spiral conveyor 2221 and the second spiral conveyor.

[0033] The double-spiral conveying device 20 further comprises a discharge channel arranged below the discharge port, and more specifically, the discharge channel comprises a first channel corresponding to the first spiral conveyor 2221 and a second channel corresponding to the second spiral conveyor, wherein the first channel comprises a first discharging port 211 communicating with the first conveying channel, a first discharging port 213 for discharging the bamboo raw materials, and a first valve 212 located between the first discharging port 211 and the first discharging port 213, and similarly, the second channel comprises a second discharging port 221, a second discharging port 223, and a second valve 222, and the first discharging port 213 and the second discharging port 223 are directed downward.

[0034] Further, the first channel and the second channel are vertically arranged.

[0035] Further, the first spiral conveyor 2221 and the second spiral conveyor are 400-600 mm apart from each other.

[0036] The inclined screen dewaterer 30 comprises an inclined screen and a side spiral conveying device 40 arranged at one side of the inclined screen, wherein the inclined screen is arranged obliquely to the horizontal plane, and the inclined screen is located directly below the first discharge port 213 and the second discharge port 223, and is used to receive the bamboo raw materials conveyed by the double spiral conveying device 20, and the water along with the bamboo raw materials is filtered and separated by the inclined screen, and the bamboo raw materials move along the inclined screen to the side spiral conveying device 40 at one side of the inclined screen, and are conveyed to a predetermined position by the side spiral conveying device 40.

[0037] Further, the inclined screen is a vibrating screen, when the vibrating screen vibrates at a high frequency, on the one hand, the bamboo raw materials can be quickly separated from the water, and on the other hand, the bamboo raw materials on the inclined screen can quickly slide to the side spiral conveying device 40, and the hole blocking phenomenon is not easy to occur.

[0038] Further, the angle between the inclined screen and the horizontal plane is 30°-60°.

[0039] In the embodiment, the bamboo raw material recycling system further comprises a pumping and spraying system 60, the pumping and spraying system 60 comprises a water collecting tank 50 arranged at the lower side of the inclined screen, a spray head 61 arranged in the hydrolysis reaction tank 10, and a pumping device connecting the spray head 61 and the water collecting tank 50, the pumping system is configured to spray the spraying water in the water collecting tank 50 into the hydrolysis reaction tank 10, and the inclined screen is configured to receive and separate the bamboo raw materials and the spraying water.

[0040] Further, the spray head 61 comprises a spray hole, and the diameter of the spray hole is 5-10 mm.

[0041] Further, the spray head 61 sprays the spraying water in the first direction 611, if a tangent line 601 is tangent to the tank wall 12 at the corresponding position of the spray head 61, the angle between the first direction 611 and the tangent line 601 is α, then α = 30°-45°, in this case, the spraying water forms a spiral flow on the tank wall 12, so that the bamboo raw materials can be quickly washed to the bottom of the tank, especially when the bamboo raw materials are attached to the tank wall 12, the bamboo raw materials can be washed clean by this arrangement.

[0042] Further, the first direction 611 is substantially along the horizontal direction, that is, the angle between the first direction 611 and the horizontal plane is -3°-3°.

[0043] Further, the spray heads 61 are a plurality of, and the plurality of spray heads 61 are arranged in a circumferential array in the circumferential direction of the tank wall 12 and are equidistantly arranged in the vertical direction of the pipe wall.

[0044] It can be understood that the bamboo raw material recycling system operates in the following manner: after the hydrolysis reaction, the hydrolysis liquid in the accommodation space 11 is discharged through the liquid discharge port; in a specific embodiment, a hydrolysis liquid tank is arranged downstream of the liquid discharge port, used to collect the hydrolysis liquid and then transport the hydrolysis liquid to a predetermined position; the bamboo raw material in the accommodation space 11 appears a "bridge" phenomenon due to lack of water; at this time, the spraying water in the water collecting tank 50 is sprayed into the hydrolysis reaction tank 10 through the pumping and spraying system 60, which can break the "bridge" balance on the one hand, and make the bamboo raw material be washed downward under the action of spraying on the other hand; at the same time, the double-spiral conveying device 20 and the first valve 212, the second valve 222, the inclined screen dewatering machine 30, and the side spiral conveying device 40 are started; the bamboo raw material under the action of washing falls onto the double-spiral conveying device 20, and is conveyed downstream through the double-spiral conveying device 20; at the same time, the inclined screen dewatering machine 30 separates the bamboo raw material and the spraying water; the spraying water is collected in the water collecting tank 50 and can be reused; and the bamboo raw material is conveyed to a predetermined position downstream by the side spiral conveying device 40.

[0045] The above description is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion according to the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A bamboo raw material recovery system, comprising a hydrolysis reaction tank, a double-screw conveying device, and an inclined screen dehydrator, characterized in that: The hydrolysis reaction tank is used to hydrolyze the bamboo raw material to form a hydrolyzate and bamboo raw material; The double-screw conveying device is arranged at the lower side of the hydrolysis reaction tank and is used to convey the bamboo raw materials downstream; The inclined screen dehydrator comprises an inclined screen and a side screw conveying device arranged on one side of the inclined screen; The double-screw conveying device comprises a pair of screw conveyors, each of which comprises a central shaft and conveying blades spirally wound around the central shaft, wherein the conveying blades of the pair of screw conveyors are wound in opposite directions; The bamboo raw material recovery system also includes a pumping and spraying system, which includes a water collection tank arranged on the lower side of the inclined net, a nozzle arranged in the hydrolysis reaction tank, and a pumping device connecting the nozzle and the water collection tank. The pumping device is configured to transport the spray water in the water collection tank to the nozzle and spray the water into the hydrolysis reaction tank from the nozzle. The inclined net is configured to receive and separate the bamboo raw material and the spray water.

2. The bamboo material recycling system according to claim 1, wherein: The hydrolysis reaction tank includes a tank wall and a accommodating space surrounded by the tank wall. The nozzle sprays spray water along a first direction. If a tangent line is defined as being tangent to the tank wall at a position corresponding to the nozzle, and the angle between the first direction and the tangent line is α, then α=30°~45°.

3. The bamboo material recycling system according to claim 2, characterized in that: The angle between the first direction and the horizontal plane is -3° to 3°.

4. The bamboo material recycling system according to claim 2, wherein: The nozzle comprises a spray hole, and the diameter of the spray hole is 5 to 10 mm.

5. The bamboo material recycling system according to claim 2, wherein: The double-screw conveying device also includes a discharge channel arranged below the discharge outlet, and the discharge channel includes a first channel and a second channel, wherein the first channel includes a first discharge port for discharging bamboo raw materials, and the second channel includes a second discharge port for discharging bamboo raw materials, and the inclined net is arranged directly below the first discharge port and the second discharge port.

6. The bamboo material recycling system according to claim 5, characterized in that: The inclined screen is a vibrating screen.

7. The bamboo material recycling system according to claim 6, characterized in that: The angle between the inclined net and the horizontal plane is 30° to 60°.

8. The bamboo material recycling system according to claim 2, wherein: The pair of screw conveyors includes a first screw conveyor and a second screw conveyor. The outer diameter of the first screw conveyor is 400-800 mm, and the pitch of the conveying blade is 200-400 mm.

Images