Device for producing sugar from straw and co-producing fulvic acid

Abstract

The utility model discloses a straw sugar production and fulvic acid co-production device, which comprises a pretreatment device and a preparation system, the pretreatment device comprises a treatment shell, an inner cavity of the treatment shell is respectively provided with two groups of net body components from top to bottom, and the top of the treatment shell is provided with a feed hopper which is communicated with the treatment shell; an inner cavity of the treatment shell is sequentially divided into a smashing cavity, a cleaning cavity and a liquid discharging cavity from top to bottom by the two sets of net body components, a rotator is arranged at the bottom of the treatment shell, and a rotating shaft is arranged at the output end of the rotator; the crushing mechanism is arranged in the crushing cavity and the feeding hopper and is driven by a rotating shaft to crush the straws; the water supply mechanism is connected with the rotating shaft; and the discharging mechanism is arranged on one side of the processing shell and corresponds to one end of a net body component below. The pretreatment equipment in the device for co-producing the fulvic acid in the process of producing the sugar from the straws integrates crushing, cleaning and dewatering, so that the use cost is reduced while the operation is convenient, and the overall occupied area and the later manual maintenance burden of the device are reduced.

Description

Technical Field

[0001] This utility model relates to the field of biomass raw material processing technology, specifically a straw-based sugar-producing and humic acid-co-producing device. Background Technology

[0002] Straw is one of the biomass raw materials. Traditionally, straw is mostly disposed of by burning or landfilling, which not only wastes valuable biomass resources but may also pollute the environment. With the continuous development of biochemical technology, the production of high-value-added products such as sugar solution and humic acid from straw has become a research hotspot.

[0003] Currently, some straw-based sugar and humic acid production devices exist on the market. These devices typically consist of key components such as a pretreatment unit, a multi-stage countercurrent treatment unit, and an enzymatic saccharification unit. The pretreatment unit crushes and washes the straw to improve the efficiency of subsequent processing. However, pretreatment units often require multiple devices to complete the crushing and washing of the straw, which not only increases the complexity and operating cost of the equipment but also increases the overall footprint and the burden of manual maintenance. Therefore, we propose a straw-based sugar and humic acid co-production device. Utility Model Content

[0004] The purpose of this invention is to provide a device for co-producing humic acid from straw sugar production, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A straw-based sugar-to-humic acid co-production device includes a pretreatment device for processing straw and a preparation system for preparing the processed straw into sugar and humic acid. The pretreatment device includes:

[0007] The processing shell has two sets of mesh components arranged from top to bottom in its inner cavity. The top of the processing shell has a connected feed hopper. The two sets of mesh components divide the inner cavity of the processing shell from top to bottom into a crushing chamber, a washing chamber and a draining chamber. The bottom of the processing shell has a rotator. The output end of the rotator has a rotating shaft. One end of the rotating shaft passes through the mesh components and the top of the processing shell in sequence.

[0008] The crushing mechanism is located inside the crushing chamber and the feed hopper, and is driven by a rotating shaft to crush the straw;

[0009] A water supply mechanism, connected to a rotating shaft, is used to supply liquid into the cleaning chamber to clean the crushed straw.

[0010] The discharge mechanism is located on one side of the processing shell and corresponds to one end of a net body component below it, and is used to discharge the washed straw.

[0011] A further improvement is that the preparation system includes a decomposition device connected to a pretreatment device, a multi-stage countercurrent washing device connected to the decomposition device, a composite enzymatic hydrolysis tank connected to the multi-stage countercurrent washing device, a filtration device connected to the composite enzymatic hydrolysis tank, a concentrator and a pyrolysis activation vessel connected to the filtration device respectively, and a drying device connected to the pyrolysis activation vessel.

[0012] A further improvement is that the two sets of mesh components, from top to bottom, include a horizontally arranged screen and an inclinedly arranged filter screen.

[0013] A further improvement is that the crushing mechanism includes:

[0014] Several sets of crushing blades are evenly distributed on the outer wall of the rotating shaft located inside the crushing chamber;

[0015] Two sets of crushing rollers are symmetrically arranged in the feed hopper. One end of the shaft of each set of crushing rollers passes through one side wall of the feed hopper and is connected to a rotating shaft through a transmission gear set. The rotating shaft drives the two sets of crushing rollers to rotate in opposite directions through the transmission gear set.

[0016] A bevel gear set, which drives and connects a rotating shaft and a pivot shaft.

[0017] A further improvement is that the water supply mechanism includes:

[0018] A water supply pump is located at the top of the treatment shell, and its output end is rotatably connected to the top of the rotating shaft through a water inlet pipe. The rotating shaft has a cavity that communicates with the water inlet pipe.

[0019] Several sets of stirring rods are evenly arranged on the outer wall of the rotating shaft located inside the cleaning chamber, and one end of the stirring rod is connected to the chamber. Several sets of water outlet holes are opened on the outer wall of the stirring rod.

[0020] A further improvement is that the discharge mechanism includes:

[0021] A guide seat is located on the side wall of the processing shell and communicates with the cleaning chamber and corresponds to the lower end of the filter screen. The bottom of the guide seat is connected to the feed end of the twin-screw extrusion dewatering machine.

[0022] A sealing plate is inserted at the top of the guide seat. The sealing plate is connected to one end of a telescopic device located on the outer wall of the processing shell. The telescopic device drives the guide seat to close or open.

[0023] A further improvement is that a rotating component is fixedly sleeved on the outer wall of the drainage chamber, and several sets of magnetic blocks are embedded in a circular array on the rotating component. One of the magnetic blocks magnetically attracts a ball, and the ball is embedded at the bottom of the striking component. The striking component is vertically inserted into the bracket, and the bracket is connected to the inner wall of the drainage chamber. An elastic component is sleeved on the outer wall of the striking component. The elastic component is used to drive the striking component to strike the filter screen upward when the magnetic block and the ball are separated.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] The pretreatment equipment in this utility model's straw-based sugar-to-humic acid co-production device integrates crushing, washing, and dehydration. When the rotating shaft is driven to rotate, the crushing mechanism not only crushes the incoming straw but also drives the stirring rod to stir the crushed straw. The liquid sprayed from the water outlet on the outer wall of the stirring rod efficiently removes impurities and dust from the straw. Furthermore, as the shaft rotates, the rotating parts, striking parts, and magnetic blocks drive the filter screen to vibrate intermittently, which helps to further remove fine impurities and moisture from the straw. The washed straw then enters a twin-screw extruder for dehydration. The device is easy to operate, reduces operating costs, and decreases the overall footprint and subsequent manual maintenance burden. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the straw-based sugar-co-production humic acid co-production device of this utility model;

[0027] Figure 2 This is a schematic diagram of the pretreatment equipment of this utility model;

[0028] Figure 3 This utility model Figure 2 Another perspective structural diagram;

[0029] Figure 4 This utility model Figure 2 Structural sectional view.

[0030] In the diagram: 100. Pretreatment equipment; 101. Processing shell; 102. Feed hopper; 103. Screen; 104. Rotator; 105. Crushing blade; 106. Rotating shaft; 107. Crushing roller; 108. Stirring rod; 109. Filter screen; 110. Guide seat; 111. Twin-screw extruder; 112. Sealing plate; 113. Expansion joint; 114. Water pump; 115. Rotating component; 116. Actuating component; 117. Magnetic block; 118. Transmission gear set; 119. Bevel gear set; 200. Preparation system; 201. Decomposition equipment; 202. Multi-stage countercurrent washing equipment; 203. Compound enzymatic hydrolysis tank equipment; 204. Filtration equipment; 205. Concentrator; 206. Pyrolysis activation kettle equipment; 207. Drying equipment. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-4 A straw-based sugar-to-humic acid co-production device includes a pretreatment device 100 for treating straw and a preparation system 200 for preparing the treated straw into sugar and humic acid.

[0033] The pretreatment equipment 100 is used to crush, wash and dehydrate the straw to be treated;

[0034] The preparation system 200 is a conventional device in the art, including a decomposition device 201 connected to the pretreatment device 100, a multi-stage countercurrent washing device 202 connected to the decomposition device 201, a composite enzymatic hydrolysis tank device 203 connected to the multi-stage countercurrent washing device 202, a filtration device 204 connected to the composite enzymatic hydrolysis tank device 203, a concentrator 205 and a pyrolysis activation vessel device 206 connected to the filtration device 204 respectively, and a drying device 207 connected to the pyrolysis activation vessel device 206; the decomposition device 201 is, for example, a hydrothermal decomposition tank, in which the treated straw is fed into the hydrothermal decomposition tank for hydrothermal decomposition, and an alkaline decomposition solution is added to the hydrothermal decomposition tank to obtain the pretreated product; the multi-stage countercurrent washing device 202 includes, for example, a washing device The pretreated product is washed using a solid-liquid separator and an extrusion device to obtain straw residue and washing liquid. The aforementioned compound enzymatic hydrolysis tank equipment 203, for example, consists of multiple enzymatic hydrolysis tanks, which enzymatically hydrolyze the straw residue to obtain enzymatic hydrolysate and enzymatic hydrolysate residue. The aforementioned filtration equipment 204, for example, is a plate and frame filter press, which performs solid-liquid separation and filtration on the enzymatic hydrolysate and enzymatic hydrolysate residue. The aforementioned concentrator 205, for example, is a thermal concentrator 205, which processes the enzymatic hydrolysate. In this step, it can also be used in conjunction with a decolorization system and a reverse osmosis concentration system, which will not be described in detail here. The aforementioned pyrolysis activation vessel equipment 206 is a conventional device in the art. It pyrolyzes and activates the enzymatic hydrolysate residue by adding an activator and water to it, and then dries it using a drying device 207 to obtain fulvic acid.

[0035] Pretreatment equipment 100 includes:

[0036] The processing shell 101 has two sets of mesh components arranged from top to bottom in its inner cavity. The two sets of mesh components include a horizontally arranged screen 103 and an inclined filter screen 109. The screen 103 is used to screen the straw so that the straw is chopped into 0-10cm pieces and then passes through the screen 103. The filter screen 109 is used to filter the moisture in the straw.

[0037] The top of the processing shell 101 is provided with a connected feed hopper 102. Two sets of mesh components divide the inner cavity of the processing shell 101 from top to bottom to form a crushing chamber, a washing chamber and a draining chamber. The bottom of the processing shell 101 is provided with a rotator 104, which is, for example, a motor. The output end of the rotator 104 is provided with a rotating shaft 106. One end of the rotating shaft 106 passes through the mesh component and the top of the processing shell 101 in sequence. A bearing can be provided at the connection between the rotating shaft 106 and the mesh component and the processing shell 101.

[0038] The crushing mechanism is located inside the crushing chamber and the feed hopper 102, and is driven by the rotating shaft 106 to crush the straw;

[0039] The water supply mechanism, connected to the rotating shaft 106, is used to supply liquid into the cleaning chamber to clean and pulverize the straw, and remove impurities and dust from the straw.

[0040] The discharge mechanism is located on one side of the processing shell 101 and corresponds to one end of the lower mesh component, and is used to discharge the washed straw.

[0041] Preferably, the crushing mechanism in this embodiment includes:

[0042] Several sets of crushing blades 105 are evenly arranged on the outer wall of the rotating shaft 106 located inside the crushing chamber;

[0043] Two sets of crushing rollers 107 are symmetrically arranged inside the feed hopper 102. One end of the shaft of each set of crushing rollers 107 passes through one side wall of the feed hopper 102 and is connected to a rotating shaft through a transmission gear set 118. The transmission gear set 118 includes a driving gear on the outer wall of the rotating shaft 106 and a driven gear on the shaft of the crushing roller 107. The rotating shaft drives the two sets of crushing rollers 107 to rotate in opposite directions through the transmission gear set 118, so as to improve the crushing effect of the crushing rollers 107 on the straw and reduce the crushing burden of the subsequent crushing blades 105 on the straw, thus pre-crushing the straw.

[0044] The bevel gear set 119 is a transmission connection between the rotating shaft and the rotating shaft 106. The bevel gear set 119 consists of two sets of meshing bevel gears. When the rotator 104 drives the rotating shaft 106 to rotate, the rotating shaft 106 drives the two sets of crushing rollers 107 to rotate synchronously through the bevel gear set 119.

[0045] As a preferred embodiment, the water supply mechanism includes:

[0046] A water supply pump 114 is located at the top of the treatment shell 101. Its output end is rotatably connected to the top of the rotating shaft 106 through a water inlet pipe. The water inlet pipe and the rotating shaft 106 can be connected by bearings so that the rotation of the rotating shaft 106 does not affect the water inlet pipe. A cavity communicating with the water inlet pipe is opened inside the rotating shaft 106.

[0047] Several sets of stirring rods 108 are evenly arranged on the outer wall of the rotating shaft 106 located inside the cleaning chamber, and one end of the stirring rod 108 is connected to the chamber. Several sets of water outlet holes are opened on the outer wall of the stirring rod 108. The crushed straw enters the cleaning chamber, and the stirring rod 108 rotates with the rotating shaft 106 to stir the straw in the cleaning chamber. At the same time, the water pump 114 supplies liquid to the water inlet pipe. The liquid sprays out from the water outlet hole to efficiently clean the straw in the cleaning chamber, removing impurities and particles from the straw. The liquid carries the impurities and particles through the filter screen 109 to the drain chamber.

[0048] Preferably, the discharge mechanism in this embodiment includes:

[0049] The guide seat 110 is located on the side wall of the processing shell 101 and communicates with the washing chamber and corresponds to the lower end of the filter screen 109. The bottom inner wall of the guide seat 110 is parallel to the filter screen 109. The bottom of the guide seat 110 is connected to the feed end of the twin-screw extruder 111. The washed straw enters the guide seat 110 under the guidance of the filter screen 109, and then enters the twin-screw extruder 111. The twin-screw extruder 111 is a conventional device in this field and will not be described in detail here. The twin-screw extruder 111 squeezes and tears the washed straw to remove the moisture from the straw.

[0050] A sealing plate 112 is inserted at the top of the guide seat 110. The sealing plate 112 is connected to one end of a telescopic device 113 located on the outer wall of the processing shell 101. The telescopic device 113 drives the guide seat 110 to close or open. The telescopic device 113 is, for example, an electric telescopic rod. During cleaning, the sealing plate 112 can be closed by controlling the telescopic device 113 to ensure the quality of cleaning the straw by the liquid. After cleaning for a period of time, the sealing plate 112 can be driven upward by controlling the telescopic device 113 to allow the straw to enter the guide seat 110 and then enter the twin-screw extrusion dewatering machine 111.

[0051] Preferably, in this embodiment, a rotating component 115 is fixedly sleeved on the outer wall of the drainage chamber of the rotating shaft 106. The rotating component 115 is circular, and several sets of magnetic blocks 117 are embedded in a circular array on the rotating component 115. One of the magnetic blocks 117 magnetically attracts a ball bearing. The ball bearing is embedded at the bottom end of the striking component 116. The striking component 116 includes a movable rod and a striking ball embedded at the top of the movable rod. The striking component 116 is vertically inserted into a bracket, and the bracket is connected to the inner wall of the drainage chamber. An elastic sleeve is provided on the outer wall of the striking component 116. The component, such as a spring, is used to drive the striking component 116 to strike the filter screen 109 upward when the magnetic block 117 separates from the ball. The rotating component 115 rotates intermittently with the rotating shaft 106 to make the magnetic block 117 and the ball correspond. When they are in direct correspondence, the striking component 116 moves downward away from the filter screen 109 under the action of magnetic force. When they are misaligned, the striking component 116 returns to its original position and strikes the filter screen 109 upward under the action of the elastic component, causing the filter screen 109 to vibrate, thereby allowing the straw on the filter screen 109 to enter the guide seat 110 better.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straw-based sugar-to-humic acid co-production apparatus, comprising a pretreatment device (100) for treating straw and a preparation system (200) for preparing the treated straw into sugar and humic acid, characterized in that: The pretreatment equipment (100) includes: The processing shell (101) has two sets of mesh components arranged from top to bottom in its inner cavity. The top of the processing shell (101) is provided with a connected feed hopper (102). The two sets of mesh components divide the inner cavity of the processing shell (101) from top to bottom to form a crushing chamber, a washing chamber and a draining chamber. The bottom of the processing shell (101) is provided with a rotator (104). The output end of the rotator (104) is provided with a rotating shaft (106). One end of the rotating shaft (106) passes through the mesh components and the top of the processing shell (101) in sequence. The crushing mechanism is located in the crushing chamber and the feed hopper (102), and is driven by the rotating shaft (106) to crush the straw; A water supply mechanism, connected to a rotating shaft (106), is used to supply liquid into the cleaning chamber to clean the crushed straw; The discharge mechanism is located on one side of the processing shell (101) and corresponds to one end of the lower mesh component, and is used to discharge the washed straw.

2. The straw-based sugar-to-humic acid co-production device according to claim 1, characterized in that: The preparation system (200) includes a decomposition device (201) connected to the pretreatment device (100), a multi-stage countercurrent washing device (202) connected to the decomposition device (201), a composite enzymatic hydrolysis tank device (203) connected to the multi-stage countercurrent washing device (202), a filtration device (204) connected to the composite enzymatic hydrolysis tank device (203), a concentrator (205) and a pyrolysis activation vessel device (206) respectively connected to the filtration device (204), and a drying device (207) connected to the pyrolysis activation vessel device (206).

3. The straw-based sugar-to-humic acid co-production device according to claim 1, characterized in that: The two sets of mesh components, from top to bottom, include a horizontally arranged screen (103) and an inclinedly arranged filter screen (109).

4. The straw-based sugar-to-humic acid co-production device according to claim 1, characterized in that: The pulverizing mechanism includes: Several sets of crushing blades (105) are evenly arranged on the outer wall of the crushing chamber located on the rotating shaft (106); Two sets of crushing rollers (107) are symmetrically arranged in the feed hopper (102). One end of the shaft of each set of crushing rollers (107) passes through one side wall of the feed hopper (102) and is connected to a rotating shaft through a transmission gear set (118). The rotating shaft drives the two sets of crushing rollers (107) to rotate in opposite directions through the transmission gear set (118). A bevel gear set (119) is used to drive a rotating shaft and a rotating shaft (106).

5. The straw-based sugar-producing and humic acid-co-producing device according to claim 1, characterized in that: The water supply system includes: A water supply pump (114) is located at the top of the treatment shell (101), and its output end is rotatably connected to the top of the rotating shaft (106) through a water inlet pipe. The rotating shaft (106) has a cavity that communicates with the water inlet pipe. Several sets of stirring rods (108) are evenly arranged on the outer wall of the rotating shaft (106) located inside the cleaning chamber, and one end of the stirring rod (108) is connected to the chamber. Several sets of water outlet holes are opened on the outer wall of the stirring rod (108).

6. The straw-based sugar-to-humic acid co-production device according to claim 3, characterized in that: The discharge mechanism includes: A guide seat (110) is provided on the side wall of the processing shell (101) and communicates with the cleaning chamber and corresponds to the lower end of the filter screen (109). The bottom of the guide seat (110) is connected to the feed end of the twin-screw extrusion dewatering machine (111). A sealing plate (112) is inserted at the top of the guide seat (110). The sealing plate (112) is connected to one end of a telescopic device (113) located on the outer wall of the processing shell (101). The telescopic device (113) drives the guide seat (110) to close or open.

7. The straw-based sugar-to-humic acid co-production device according to claim 3, characterized in that: The rotating shaft (106) is fixedly fitted with a rotating component (115) on the outer wall of the drainage chamber. Several sets of magnetic blocks (117) are embedded in the rotating component (115) in a circular array. One magnetic block (117) magnetically attracts a ball, and the ball is embedded at the bottom of the striking component (116). The striking component (116) is vertically inserted into the bracket, and the bracket is connected to the inner wall of the drainage chamber. An elastic component is fitted on the outer wall of the striking component (116). The elastic component is used to drive the striking component (116) to strike the filter screen (109) upward when the magnetic block (117) separates from the ball.

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