A device for quickly hydrolyzing straw to produce fertilizer

Abstract

The utility model discloses a kind of straw quick hydrolysis fertilizer preparation devices, it is related to hydrolysis fertilizer preparation field, including reaction kettle, reaction kettle includes reaction bin, reaction bin top is fixed with end cap, outer shaft is rotatably connected on end cap, outer shaft is set to hollow and is filled with heat conduction oil, pump acid mechanism is arranged in end cap, pump acid mechanism includes the liquid storage ring of being fixed in end cap, the bottom of liquid storage ring is equipped with several plunger pump assemblies, ring groove cam for driving plunger pump assembly to move is rotatably connected in the middle of end cap, motor is fixed on end cap, motor output end is driven outer shaft and ring groove cam synchronous rotation by gear set. Advantageous effect lies in: motor simultaneously drives outer shaft and ring groove cam rotation, outer shaft is stirred and heated to straw, ring groove cam drives several plunger pump assemblies and pumps into reaction bin in dilute acid, so that stirring, heating, dilute acid adding function is connected together, to avoid the problem that material is unevenly heated, acid-base mixing is not sufficient.

Description

Technical Field

[0001] This utility model relates to the field of hydrolysis fertilizer production, and in particular to a device for rapid hydrolysis fertilizer production from straw. Background Technology

[0002] Rapid hydrolysis of straw to produce fertilizer is a technology that uses physical, chemical, or biological methods to break down the complex structure of cellulose, hemicellulose, and lignin in straw, rapidly degrading them into small-molecule organic matter (such as organic acids, amino acids, polysaccharides, etc.) that are easily absorbed by crops, and ultimately converting them into organic fertilizer or organic liquid fertilizer.

[0003] The most common process route is as follows: First, straw pretreatment to remove impurities, reduce moisture and crush it; second, steam explosion to break down the straw fiber structure; third, adding dilute acid, stirring and mixing the acid with the straw, and heating at the same time to fully carry out the hydrolysis reaction; fourth, adjusting the pH value to precipitate and remove salts such as calcium sulfate or calcium chloride; fifth, adding additives to form organic fertilizer.

[0004] For example, patent document CN206219503U discloses a skid-mounted straw gasification and continuous hydrolysis fertilizer production system. The system features a straw inlet on one side of the crusher housing, a crushing rod inside the housing with at least two sets of crushing blades spaced at equal intervals, a filter screen at the bottom of the crusher housing, and bidirectional drainage pipes connecting the crusher housing to a first and second material pipe. The second material pipe is connected to a hydrolysis reactor, and the first material pipe is equipped with an induced draft fan and connected to a gasifier. The gasifier contains a separation system. This device is scientifically and rationally designed, utilizing the energy of the straw itself to heat and hydrolyze it, rapidly producing organic fertilizer and high-quality fuel gas. It achieves a high degree of comprehensive straw utilization, enabling multi-faceted straw utilization, thorough straw utilization, complies with national energy conservation and environmental protection policies, and has a high degree of intelligence, making it worthy of widespread promotion.

[0005] In existing technologies, straw after steam explosion is fed into a hydrolysis reactor, where dilute acid is added and heated to carry out the hydrolysis reaction. Stirring is used to ensure sufficient reaction between the acid and straw. However, the stirring, heating, and acid / alkali addition in current hydrolysis reactors are mostly independent components controlled by electrical systems, which can easily lead to uneven heating of materials and insufficient mixing of acids and alkalis. Utility Model Content

[0006] The purpose of this invention is to provide a straw rapid hydrolysis fertilizer production device to solve the above problems.

[0007] This utility model achieves the above objectives through the following technical solutions:

[0008] A rapid straw hydrolysis fertilizer production device includes a reactor, which includes a reaction chamber. An end cover is fixedly connected to the top of the reaction chamber, and an outer shaft is rotatably connected to the end cover. Several stirring rods are fixedly connected to the lower section of the outer shaft. The outer shaft and the stirring rods are hollow and filled with heat-conducting oil. A first driven gear is fixedly connected to the top of the outer shaft. A motor is fixedly connected to the end cover. A first driving gear and a second driving gear are fixedly connected to the output end of the motor. The first driving gear and the first driven gear mesh. An acid pumping mechanism is provided inside the end cover. The acid pumping mechanism includes a liquid storage ring fixedly connected inside the end cover. Several circumferentially evenly arranged plunger pump assemblies are installed at the bottom of the liquid storage ring. A ring groove cam for driving the plunger pump assemblies is rotatably connected to the middle of the end cover. A second driven gear is fixedly connected to the top of the ring groove cam. The second driven gear meshes with the second driving gear.

[0009] Preferably, a feed pipe is fixedly connected to the upper side of the reaction chamber, a heating shell is fixedly connected to the outside of the reaction chamber, several heating wires are fixedly connected inside the heating shell, heat transfer oil is filled inside the heating shell, the bottom of the reaction chamber is set as an inverted cone shape, a solenoid valve is fixedly connected to the bottom of the reaction chamber, and a support is fixedly connected to the outside of the heating shell.

[0010] Preferably, a number of star-shaped baffles are fixedly connected inside the outer shaft, the extension plates of the baffles extend into the stirring rod, there is a gap between the outermost outermost extension plate of the baffle and the inner wall of the stirring rod, and an inner shaft tube is fixedly connected between the number of baffles.

[0011] Preferably, a distributor is rotatably and sealed to the outer shaft. An annular cavity is provided inside the distributor. The upper end of the inner shaft tube passes through the middle of the distributor and is rotatably and sealed to the distributor. A return pipe is fixedly connected to the upper middle of the distributor. The other end of the return pipe is sealed and fixedly connected to the upper side of the heating shell. An oil inlet pipe is fixedly connected to one side of the distributor. The other end of the oil inlet pipe is sealed and fixedly connected to the lower end of the heating shell. An impeller pump assembly is fixedly connected to the oil inlet pipe. A linkage gear set is fixedly connected to the power input end of the impeller pump assembly. One gear in the linkage gear set meshes with the first driven gear.

[0012] Preferably, the plunger pump assembly includes a T-shaped pumping acid tube arranged laterally, the upper end of the pumping acid tube being sealed and fixedly connected to a liquid storage ring, and corresponding one-way valves being fixedly connected to the upper and lower ends of the pumping acid tube, respectively. A piston rod is sealed and slidably connected to one side of the pumping acid tube, and the piston rod is slidably connected to the annular groove on the annular groove cam.

[0013] Preferably, an acid inlet pipe is fixedly connected to the end cap, a dilute acid source is connected to the outside of the acid inlet pipe, and the other end of the acid inlet pipe is fixedly connected to a liquid storage ring. The liquid storage ring and the acid pump pipe are made of corrosion-resistant steel.

[0014] The beneficial effects are as follows: the motor drives the outer shaft and the annular groove cam to rotate simultaneously. The outer shaft stirs the straw, and the annular groove cam drives several plunger pump assemblies to pump dilute acid into the reaction chamber. In addition, the outer shaft is filled with heat transfer oil, which heats the straw through the outer shaft. In this way, the stirring, heating and dilute acid addition functions are linked together through mechanical linkage, thereby avoiding the problems of uneven heating of materials and insufficient mixing of acid and alkali.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of a straw rapid hydrolysis fertilizer production device according to the present invention;

[0018] Figure 2 This is a left sectional view of the straw rapid hydrolysis fertilizer production device described in this utility model;

[0019] Figure 3 This is a front sectional view of the straw rapid hydrolysis fertilizer production device described in this utility model;

[0020] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0022] Figure 6 This is a three-dimensional structural view of the heating rotor of the straw rapid hydrolysis fertilizer production device described in this utility model;

[0023] Figure 7 This is a perspective view showing the relative positions of the motor, heating rotor, and acid pumping mechanism of the straw rapid hydrolysis fertilizer production device described in this utility model.

[0024] Figure 8 This is a top view of the pump acid mechanism of the straw rapid hydrolysis fertilizer production device described in this utility model;

[0025] Figure 9 yes Figure 8 The C-direction sectional view.

[0026] The annotations in the attached figures are explained as follows:

[0027] 101. Reaction chamber; 102. Heating shell; 103. Support; 104. Solenoid valve; 105. End cap; 106. Heating wire; 107. Feed pipe; 201. Motor; 202. First driving gear; 203. Second driving gear; 301. Outer shaft; 302. Stirring rod; 303. First driven gear; 304. Inner shaft tube; 305. Partition plate; 306. Diverter; 307. Return pipe; 308. Impeller pump assembly; 309. Oil inlet pipe; 310. Linkage gear set; 401. Acid inlet pipe; 402. Liquid storage ring; 403. Acid pump pipe; 404. Second driven gear; 405. Ring groove cam; 406. Piston column; 407. Check valve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-9As shown, a rapid straw hydrolysis fertilizer production device includes a reactor, which includes a reaction chamber 101. An end cover 105 is fixedly connected to the top of the reaction chamber 101. An outer shaft 301 is rotatably connected to the end cover 105. Several stirring rods 302 are fixedly connected to the lower section of the outer shaft 301. The outer shaft 301 and the stirring rods 302 are hollow and filled with heat-conducting oil. A first driven gear 303 is fixedly connected to the top of the outer shaft 301. A motor 201 is fixedly connected to the end cover 105. The motor 201 outputs... A first driving gear 202 and a second driving gear 203 are fixedly connected to the end cap 105. The first driving gear 202 meshes with a first driven gear 303. An acid pumping mechanism is provided inside the end cap 105. The acid pumping mechanism includes a liquid storage ring 402 fixedly connected inside the end cap 105. Several circumferentially evenly arranged plunger pump assemblies are installed at the bottom of the liquid storage ring 402. A ring groove cam 405 for driving the plunger pump assemblies is rotatably connected in the middle of the end cap 105. A second driving gear 203 is fixedly connected to the top of the ring groove cam 405. Driven gear 404 and second driven gear 404 mesh with second driving gear 203. During use, the straw after steam explosion is fed into reaction chamber 101 by the feeding device. Then, motor 201 drives first driving gear 202 to rotate, first driving gear 202 drives first driven gear 303 to rotate, first driven gear 303 drives outer shaft 301 to rotate, outer shaft 301 drives stirring rod 302 to rotate. At the same time, heat transfer oil transfers heat to outer shaft 301 and stirring rod 302, so the straw can be heated while stirring. Motor 201 drives second driving gear 203 to rotate, second driving gear 203 drives rotating annular groove cam 405 to rotate, annular groove cam 405 drives several plunger pumps to move. So while outer shaft 301 rotates, dilute acid is repeatedly and quantitatively fed into reaction chamber 101. In this way, stirring, heating and dilute acid addition functions are linked together through mechanical linkage, thereby avoiding problems such as uneven heating of materials and insufficient mixing of acid and alkali.

[0032] A feed pipe 107 is fixedly connected to the upper side of the reaction chamber 101. A heating shell 102 is fixedly connected to the outside of the reaction chamber 101. Several heating wires 106 are fixedly connected inside the heating shell 102. The heating shell 102 is filled with heat-conducting oil. The bottom of the reaction chamber 101 is set as an inverted cone shape. A solenoid valve 104 is fixedly connected to the bottom of the reaction chamber 101. A support 103 is fixedly connected to the outside of the heating shell 102. In use, straw is fed into the reaction chamber 101 through the feed pipe 107. Then the heating wires 106 are activated. The heating wires 106 heat the heat-conducting oil in the heating shell 102. In this way, the straw can be heated from the outside. After the hydrolysis reaction is completed, the fertilizer concentrate leaves the device through the solenoid valve 104.

[0033] Several star-shaped baffles 305 are fixedly connected inside the outer shaft 301. The extension plates of the baffles 305 extend into the stirring rod 302. There is a gap between the outermost side of the extension plate of the baffles 305 and the inner wall of the stirring rod 302. An inner shaft tube 304 is fixedly connected between the baffles 305. During use, the flow direction of the heat transfer oil inside the heating rotor is as follows: the hydraulic oil in the upper outer shaft 301 is diverted to the stirring rod 302 under the action of the baffles 305. After flowing to the end of the stirring rod 302, the hydraulic oil flows from the stirring rod 302 to the lower section of the outer shaft 301 through the gap between the baffles 305 and the stirring rod 302. When the hydraulic oil flows to the bottom of the outer shaft 301, the hydraulic oil enters the inner shaft tube 304. In this way, under the action of the baffles 305, the heat transfer oil in the outer shaft 301 forms a circulation flow, ensuring the heating effect of the heating rotor.

[0034] A flow divider 306 is rotatably and sealed to the outer shaft 301. An annular cavity is provided inside the flow divider 306. The upper end of the inner shaft tube 304 passes through the middle of the flow divider 306, and the inner shaft tube 304 is rotatably and sealed to the flow divider 306. A return pipe 307 is fixedly connected to the upper middle part of the flow divider 306. The other end of the return pipe 307 is sealed and fixedly connected to the upper side of the heating shell 102. An oil inlet pipe 309 is fixedly connected to one side of the flow divider 306. The other end of the oil inlet pipe 309 is sealed and fixedly connected to the lower end of the heating shell 102. An impeller pump assembly 308 is fixedly connected to the oil inlet pipe 309. The impeller pump assembly 308 is prior art, and its specific structure will not be described here. A linkage gear set is fixedly connected to the power input end of the impeller pump assembly 308. 310. One gear in the linkage gear set 310 meshes with the first driven gear 303. During use, the first driven gear 303 drives the outer shaft 301 to rotate, and at the same time, the first driven gear 303 drives the linkage gear set 310 to rotate. The linkage gear set 310 drives the impeller pump assembly 308 to work. Thus, the impeller pump assembly 308 pumps the heat transfer oil from the lower end of the heating shell 102 into the distributor 306 through the oil inlet pipe 309. After the action of the distributor 306, the heat transfer oil enters the outer shaft 301. Under the continuous action of the oil inlet pipe 309, the heat transfer oil forms a circulation in the outer shaft 301. The heat transfer oil flows from the inner shaft pipe 304 into the return pipe 307. Finally, the heat transfer oil enters the heating shell 102 from the upper end of the heating shell 102.

[0035] The plunger pump assembly includes a horizontally arranged T-shaped acid pumping tube 403. The upper end of the acid pumping tube 403 is sealed and fixedly connected to the liquid storage ring 402. The upper and lower ends of the acid pumping tube 403 are respectively fixedly connected to corresponding one-way valves 407. A piston rod 406 is sealed and slidably connected to one side of the acid pumping tube 403. The piston rod 406 is slidably connected to the annular groove on the annular groove cam 405. In use, the second driving gear 203 drives the second driven gear 404 to rotate. The second driven gear 404 drives the annular groove cam 405 to rotate. The annular groove cam 405 drives the piston rod 406 to perform reciprocating linear motion through the annular groove. When the piston rod 406 moves outward, the internal cavity of the acid pumping tube 403 increases. As a result, the dilute acid in the liquid storage ring 402 enters the acid pumping tube 403 through the upper one-way valve 407. When the piston rod 406 moves inward, the internal space of the acid pumping tube 403 decreases. As a result, the dilute acid enters the reaction chamber 101 through the lower one-way valve 407.

[0036] An acid inlet pipe 401 is fixedly connected to the end cap 105. A dilute acid source is connected to the outside of the acid inlet pipe 401. The other end of the acid inlet pipe 401 is fixedly connected to the liquid storage ring 402. The liquid storage ring 402 and the acid pump pipe 403 are made of corrosion-resistant steel. The dilute acid enters the liquid storage ring 402 through the acid inlet pipe 401 and is temporarily stored.

[0037] Working principle: After steam explosion, the straw is fed into the reaction chamber 101 through the feed pipe 107 by the feeding device. Then, the heating wire 106 is activated, heating the heat transfer oil in the heating shell 102. Subsequently, the motor 201 drives the first drive gear 202 to rotate, which in turn drives the first driven gear 303 to rotate. The first driven gear 303 drives the outer shaft 301 to rotate, which in turn drives the stirring rod 302 to rotate. Simultaneously, the first driven gear 303 drives the outer shaft 301 to rotate. As the 01 rotates, the first driven gear 303 drives the connecting gear set 310 to rotate, which in turn drives the impeller pump assembly 308 to work. The impeller pump assembly 308 then pumps the heat transfer oil from the lower end of the heating housing 102 into the distributor 306 through the oil inlet pipe 309. After passing through the distributor 306, the heat transfer oil enters the outer shaft 301. Under the continuous action of the oil inlet pipe 309, the heat transfer oil circulates within the outer shaft 301. Finally, the heat transfer oil flows from the inner shaft pipe 304 into the return pipe 307. Heat transfer oil enters the heating shell 102 from the upper end, transferring heat to the outer shaft 301 and the stirring rod 302. This allows for simultaneous stirring and heating of the straw. Motor 201 drives the second drive gear 203 to rotate, which in turn drives the second driven gear 404 to rotate. The driven gear 404 then drives the annular groove cam 405 to rotate. The annular groove cam 405 drives the piston rod 406 to reciprocate linearly through the annular groove. The piston rod 406 moves outwards, and the acid pump pipe 4... As the internal cavity of the 03 increases, the dilute acid in the storage ring 402 enters the acid pump pipe 403 through the upper one-way valve 407. The piston column 406 moves inward, reducing the internal space of the acid pump pipe 403. As a result, the dilute acid enters the reaction chamber 101 through the lower one-way valve 407. Thus, while the outer shaft 301 rotates, the dilute acid is repeatedly and quantitatively fed into the reaction chamber 101. In this way, the stirring, heating, and dilute acid addition functions are linked together through mechanical linkage, thereby avoiding problems such as uneven heating of materials and insufficient mixing of acid and alkali.

[0038] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for quickly hydrolyzing straw to produce fertilizer, comprising a reaction kettle, the reaction kettle comprising a reaction chamber (101), a top of the reaction chamber (101) being fixedly connected with an end cover (105), characterized in that: An outer shaft (301) is rotatably connected to the end cap (105). A plurality of stirring rods (302) are fixedly connected to the lower section of the outer shaft (301). The outer shaft (301) and the stirring rods (302) are hollow and filled with heat-conducting oil. A first driven gear (303) is fixedly connected to the top of the outer shaft (301). A motor (201) is fixedly connected to the end cap (105). A first driving gear (202) and a second driving gear (203) are fixedly connected to the output end of the motor (201). The first driving gear (202) and the first driven gear (303) are... Driven gear (303) meshes, and an acid pumping mechanism is provided inside the end cover (105). The acid pumping mechanism includes a liquid storage ring (402) fixedly connected inside the end cover (105). Several plunger pump assemblies are installed at the bottom of the liquid storage ring (402) and are evenly arranged in a circle. A ring groove cam (405) for driving the plunger pump assembly is rotatably connected in the middle of the end cover (105). A second driven gear (404) is fixedly connected to the top of the ring groove cam (405). The second driven gear (404) meshes with the second driving gear (203).

2. The device for producing fertilizer by rapidly hydrolyzing straw according to claim 1, characterized in that: A feed pipe (107) is fixedly connected to the upper side of the reaction chamber (101). A heating shell (102) is fixedly connected to the outside of the reaction chamber (101). Several heating wires (106) are fixedly connected inside the heating shell (102). Heat transfer oil is filled inside the heating shell (102). The bottom of the reaction chamber (101) is set as an inverted cone shape. A solenoid valve (104) is fixedly connected to the bottom of the reaction chamber (101). A support (103) is fixedly connected to the outside of the heating shell (102).

3. The device for producing fertilizer by rapidly hydrolyzing straw according to claim 2, characterized in that: A plurality of star-shaped partitions (305) are fixedly connected inside the outer shaft (301). The extension plate of the partition (305) extends into the stirring rod (302). There is a gap between the outermost side of the extension plate of the partition (305) and the inner wall of the stirring rod (302). An inner shaft tube (304) is fixedly connected between the plurality of partitions (305).

4. The device for producing fertilizer by rapidly hydrolyzing straw according to claim 3, characterized in that: A flow divider (306) is rotatably and sealed to the outer shaft (301). An annular cavity is provided inside the flow divider (306). The upper end of the inner shaft tube (304) passes through the middle of the flow divider (306). The inner shaft tube (304) is rotatably and sealed to the flow divider (306). A return pipe (307) is fixedly connected to the upper middle part of the flow divider (306). The other end of the return pipe (307) is sealed to the upper side of the heating shell (102). The distributor (306) is fixedly connected to an oil inlet pipe (309) on one side, and the other end of the oil inlet pipe (309) is sealed and fixedly connected to the lower end of the heating shell (102). An impeller pump assembly (308) is fixedly connected to the oil inlet pipe (309), and a linkage gear set (310) is fixedly connected to the power input end of the impeller pump assembly (308). One gear in the linkage gear set (310) meshes with the first driven gear (303).

5. The device for producing fertilizer by rapidly hydrolyzing straw according to claim 1, characterized in that: The plunger pump assembly includes a transversely arranged T-shaped pump acid tube (403), the upper end of which is sealed and fixedly connected to the liquid storage ring (402), and the upper and lower ends of the pump acid tube (403) are respectively fixedly connected to corresponding one-way valves (407). A piston column (406) is sealed and slidably connected to one side of the pump acid tube (403), and the piston column (406) is slidably connected to the annular groove on the annular groove cam (405).

6. The device for producing fertilizer by rapidly hydrolyzing straw according to claim 5, characterized in that: An acid inlet pipe (401) is fixedly connected to the end cap (105). A dilute acid source is connected to the outside of the acid inlet pipe (401). The other end of the acid inlet pipe (401) is fixedly connected to the liquid storage ring (402). The liquid storage ring (402) and the acid pump pipe (403) are made of corrosion-resistant steel.

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