CN220766994U - Dry-type fermenting installation - Google Patents

Abstract

The application discloses dry fermentation device belongs to fermentation equipment technical field. The dry fermentation device comprises a tank body, a driving mechanism and a stirring mechanism, wherein the stirring mechanism is arranged in the tank body and is connected to the lower end of the driving mechanism; the stirring mechanism comprises a stirring shaft, a first stirring assembly, a second stirring assembly and a third stirring assembly, and the first stirring assembly, the second stirring assembly and the third stirring assembly are sequentially arranged on the stirring shaft from top to bottom; the first stirring assembly comprises a first stirring rod and a supporting frame, wherein a plurality of stirring columns are arranged at the lower end of the first stirring rod, the supporting frames are symmetrically distributed on two sides of the first stirring rod, one end, far away from the stirring shaft, of the first stirring rod is connected with the stirring shaft through a first diagonal draw bar, and one end, far away from the stirring shaft, of the supporting frame is connected with the stirring shaft through a second diagonal draw bar. The device can disperse the straw floating at the top of the material, prevent the straw from crusting, ensure that the biogas can smoothly escape from the tank body, and improve the fermentation efficiency.

Description

Dry-type fermenting installation

Technical Field

The application relates to a dry fermentation device, belongs to fermentation equipment technical field.

Background

At present, crop straws are often burnt as waste, so that serious waste exists, and the environment is polluted. Therefore, how to realize the effective utilization of straw resources becomes an important research topic at present. Crop straws are the largest by-product in agricultural production, are a large number of perpetual precious resources, if being comprehensively utilized, not only can change waste into valuable, protect ecological environment and promote sustainable development of agricultural production, but also can provide a large number of cheap raw materials for fertilizer, livestock, edible fungi, energy, processing industry and the like, thereby driving the rural industrial structure and even the transformation of the whole rural structure and promoting improvement of the quality of life of peasants and urban and rural environment; therefore, the biogas fermentation of crop straws has wide development prospect.

The dry biogas fermentation has higher gas yield, lower treatment cost and better stability than the wet biogas fermentation. However, as the biogas production system has no free flowing water, the fluidity of the material is poor, the material is easy to crust and adhere to the wall, and the normal continuous operation of the biogas production system is not facilitated; especially, when straw floats at the top of the material, if not in time disperse it, can lead to marsh gas to be unable to discharge from the jar body, and over time, the material will emerge from the jar body, not only leads to fermentation output to reduce, has still brought the potential safety hazard to production.

Disclosure of Invention

In order to solve the problems, the application provides a dry fermentation device which can disperse straws floating at the top of a material, prevent the straws from crusting, ensure that methane can smoothly escape from a tank body and improve fermentation efficiency.

The utility model provides the following technical scheme:

the dry fermentation device comprises a tank body, a driving mechanism and a stirring mechanism, wherein the stirring mechanism is arranged in the tank body and is connected to the lower end of the driving mechanism;

the stirring mechanism comprises a stirring shaft, a first stirring assembly, a second stirring assembly and a third stirring assembly, and the first stirring assembly, the second stirring assembly and the third stirring assembly are sequentially arranged on the stirring shaft from top to bottom;

the first stirring assembly comprises a first stirring rod and a supporting frame, wherein a plurality of stirring columns are arranged at the lower end of the first stirring rod, the supporting frames are symmetrically distributed on two sides of the first stirring rod, one end, far away from the stirring shaft, of the first stirring rod is connected with the stirring shaft through a first diagonal draw bar, and one end, far away from the stirring shaft, of the supporting frame is connected with the stirring shaft through a second diagonal draw bar.

Optionally, the support frame includes head rod, second connecting rod and third connecting rod slope symmetry set up in the both sides of head rod, the head rod sets up perpendicularly the middle part of first puddler, the one end of second connecting rod and third connecting rod all is connected with the head rod, and the other end all is connected with the first puddler.

Optionally, the stirring columns are staggered on two sides of the first stirring rod along the length direction of the first stirring rod, and the length of the stirring columns is gradually increased from the middle to two sides.

Optionally, the second stirring subassembly includes a plurality of groups stirring frame, adjacent two sets of the relative crisscross setting of stirring frame, the stirring frame includes second puddler, first telescopic link, second telescopic link and bracing piece, second puddler one end is connected with the (mixing) shaft rotation, and the other end top-down loops through first telescopic link, bracing piece and second telescopic link and is connected with the (mixing) shaft.

Optionally, the third stirring subassembly includes harrow frame and mediation frame, the mediation frame sets up the below at the harrow frame, the harrow frame is including long harrow frame and the short harrow frame of adjacent setting, and the equal slope arrangement of lower extreme of both is provided with a plurality of rake teeth, the mediation frame includes spliced pole and stirring leaf, the stirring leaf sets up on the spliced pole.

Optionally, one end of the long harrow frame far away from the stirring shaft is connected with the stirring shaft through a third diagonal draw bar, and one end of the short harrow frame far away from the stirring shaft is connected with the long harrow frame through a fourth diagonal draw bar.

Optionally, the tank bottom is provided with first hang plate and second hang plate, the gradient of long harrow frame and the gradient of short harrow frame all with the gradient looks adaptation of first hang plate, the gradient of stirring leaf and the gradient looks adaptation of second hang plate.

Optionally, a discharge port is arranged on one side, far away from the first inclined plate, of the second inclined plate, and a screw conveyor is arranged on one side, far away from the second inclined plate, of the discharge port.

Optionally, the driving mechanism comprises two motors, a gear box is arranged between the two motors, a slewing bearing and a gear are arranged in the gear box, the gear is connected with the motors through a speed reducer and meshed with the slewing bearing, a transmission shaft is arranged on one side, away from the motors, of the slewing bearing, and the transmission shaft is connected with the stirring shaft through a coupling.

Optionally, a plurality of supporting seats are arranged at the lower end of the tank body, each supporting seat comprises a first upright post and a second upright post, the first upright posts are arranged at the outer edge of the tank body, and the second upright posts are arranged around the discharge hole;

the upper end of the tank body is provided with a feed inlet and an air outlet, and the feed inlet and the air outlet are respectively positioned at two sides of the motor.

Benefits that can be produced by the present application include, but are not limited to:

the dry fermentation device provided by the application is provided with the first stirring component, the second stirring component and the third stirring component, the first stirring component is favorable for better dispersing materials, preventing straws from gathering on the surface of biogas slurry, preventing biogas from being discharged, simultaneously guaranteeing the stability and reliability of the stirring process, the second stirring component is suitable for fermentation of materials with different viscosity, simultaneously reducing energy consumption and improving use flexibility, and the third stirring component can clear and disperse sediment at the bottom of the tank body and prevent a discharge hole from being blocked; by arranging the discharge port and the screw conveyor, automatic discharging is realized, the labor intensity of workers is reduced, and the production efficiency is improved; the driving mechanism is arranged for driving the materials in the tank body to be mixed efficiently; the stability and the safety of the tank body are improved by arranging the supporting seat; through setting up feed inlet and gas outlet, the simple operation produces the interference when can avoiding feeding and giving vent to anger simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic diagram of a dry fermentation device according to an embodiment of the present application;

FIG. 2 is a side view of a first stirring assembly according to an embodiment of the present application;

FIG. 3 is a side view of a second stirring assembly according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a third stirring assembly according to an embodiment of the present application;

FIG. 5 is a side view of a third stirring assembly according to an embodiment of the present application;

list of parts and reference numerals:

1. tank body, 2, stirring shaft, 3, first stirring rod, 4, stirring column, 5, first diagonal draw bar, 6, second diagonal draw bar, 7, first connecting rod, 8, second connecting rod, 9, third connecting rod, 10, second stirring rod, 11, first telescopic rod, 12, second telescopic rod, 13, supporting rod, 14, harrow frame, 141, long harrow frame, 142, short harrow frame, 143, harrow teeth, 15, dredging frame, 151, connecting column, 152, stirring blade, 16, third diagonal draw bar, 17, fourth diagonal draw bar, 18, first diagonal draw bar, 19, second diagonal draw bar, 20, discharge gate, 21, screw conveyer, 22, manual valve, 23, electric valve, 24, motor, 25, gear box, 26, slewing bearing, 27, gear, 28, speed reducer, 29, transmission shaft, 30, coupling, 31, first upright, 32, second upright, 33, feed inlet, 34, gas outlet.

Detailed Description

In order to more clearly illustrate the general concepts of the present application, a detailed description is provided below by way of example in connection with the accompanying drawings.

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc. indicate or refer to an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1-5, the embodiment provides a dry fermentation device, which comprises a tank body 1, a driving mechanism and a stirring mechanism, wherein the stirring mechanism is arranged in the tank body 1 and is connected to the lower end of the driving mechanism for stirring materials, so that efficient mixing of the materials in the tank body 1 is realized;

the stirring mechanism comprises a stirring shaft 2, a first stirring assembly, a second stirring assembly and a third stirring assembly, wherein the first stirring assembly, the second stirring assembly and the third stirring assembly are sequentially arranged on the stirring shaft 2 from top to bottom, so that the stirring effect is further enhanced, and fermentation is facilitated;

the first stirring assembly comprises a first stirring rod 3 and a supporting frame, wherein a plurality of stirring columns 4 are arranged at the lower end of the first stirring rod 3, so that materials can be better dispersed, straw is prevented from gathering on the surface of biogas slurry, biogas is prevented from being discharged, the supporting frames are symmetrically distributed on two sides of the first stirring rod 3, one end of the first stirring rod 3, which is far away from a stirring shaft 2, is connected with the stirring shaft 2 through a first diagonal draw bar 5, one end of the supporting frame, which is far away from the stirring shaft 2, is connected with the stirring shaft 2 through a second diagonal draw bar 6, stability of the first stirring assembly is improved, and stability and reliability of a stirring process are guaranteed.

As an implementation mode, the support frame comprises a first connecting rod 7, a second connecting rod 8 and a third connecting rod 9, the second connecting rod 8 and the third connecting rod 9 are obliquely and symmetrically arranged on two sides of the first connecting rod 7, the first connecting rod 7 is vertically arranged in the middle of the first stirring rod 3, one ends of the second connecting rod 8 and the third connecting rod 9 are connected with the first connecting rod 7, the other ends of the second connecting rod 8 and the third connecting rod 9 are connected with the first stirring rod 3, the design is reasonable, the stirring effect can be enhanced, meanwhile, the stirring shaft 2 and the first stirring rod 3 are firmly connected, and the problems of breakage or looseness and the like in the stirring process are avoided.

Specifically, the first connecting rod 7 is kept away from (mixing) shaft 2 one end and is connected with (mixing) shaft 2 through second diagonal draw bar 6, guarantees the balance of first stirring subassembly.

In particular, the inclination of the second connecting rod 8 and the third connecting rod 9 is 20-45 °, preferably 30 °, ensuring a firm connection between the support frame, the first stirring rod 3 and the stirring shaft 2, two by two.

As an implementation mode, the stirring columns 4 are arranged on two sides of the first stirring rod 3 in a staggered manner along the length direction of the first stirring rod 3, and the length of the stirring columns is gradually prolonged from the middle to the two sides, so that the stirring process is more uniform and efficient, and the utilization rate of fermentation materials is improved.

As an implementation, referring to fig. 3, the second stirring assembly includes a plurality of groups of stirring frames, and two adjacent groups of stirring frames are staggered relatively, so that fermented materials are mixed more carefully and comprehensively, and agglomeration is avoided, the stirring frames include a second stirring rod 10, a first telescopic rod 11, a second telescopic rod 12 and a supporting rod 13, one end of the second stirring rod 10 is rotationally connected with the stirring shaft 2, and the other end of the second stirring rod 10 is sequentially connected with the stirring shaft 2 from top to bottom through the first telescopic rod 11, the supporting rod 13 and the second telescopic rod 12, so as to adapt to fermentation of materials with different viscosity, reduce energy consumption and improve use flexibility.

Before use, according to the viscosity of the materials, the lengths of the first telescopic rod 11 and the second telescopic rod 12 are adjusted, so that the second stirring rod 10 presents corresponding inclination, disturbance generated during stirring is moderate, and fermentation efficiency is guaranteed. For example, the fermentation material is plant straw, its viscosity is 0.1 pa.s, and the optimal inclination of the second stirring rod 10 is 45 °.

As an implementation mode, the connection part of the lower second stirring rod 10 and the stirring shaft 2 is arranged at a position close to the upper supporting rod 13, so that the arrangement is reasonable, the stirring dead angle is avoided, and the fermentation efficiency is improved.

As an embodiment, referring to fig. 4 and 5, the third stirring assembly includes a rake frame 14 and a dredging frame 15, the dredging frame 15 is disposed below the rake frame 14, and can clean and disperse the sediment at the bottom of the tank body 1, so as to prevent the discharge hole 20 from being blocked, the rake frame 14 includes a long rake frame 141 and a short rake frame 142 which are adjacently disposed, and the lower ends of the long rake frame 141 and the short rake frame 142 are obliquely arranged and are provided with a plurality of rake teeth 143, so as to be beneficial to collecting the material at the bottom of the tank body 1 to the discharge hole 20, avoiding the material from adhering to the wall, reducing the cleaning difficulty, the dredging frame 15 includes a connecting column 151 and stirring blades 152, and the stirring blades 152 are disposed on the connecting column 151 and are used for stirring the material, so as to be beneficial to dredging the discharge hole 20.

Specifically, the stirring blades 152 are in a V-shaped structure and are uniformly distributed in the circumferential direction of the connecting column 151, so that the stirring area and the stirring force are increased, and the materials can be orderly discharged from the discharge port 20.

Specifically, the included angles between the long harrow frame 141 and the short harrow frame 142 and the harrow teeth 143 are 5-10 degrees, preferably 7 degrees, so that fermentation materials at the bottom of the tank body 1 can be effectively scraped, and the fermentation materials are prevented from sticking to the wall.

As an embodiment, one end of the long rake 141, which is far away from the stirring shaft 2, is connected with the stirring shaft 2 through the third diagonal draw bar 16, and one end of the short rake 142, which is far away from the stirring shaft 2, is connected with the long rake 141 through the fourth diagonal draw bar 17, so that stable connection can be established between the long rake 141 and the stirring shaft 2 and between the short rake 142 and the stirring shaft 2, and the durability of the device is improved.

Specifically, the length ratio of the long and short rakes 141, 142 is (1.8-2.2): 1, a step of; and the sediment at the bottom of the tank body 1 can be cleaned more comprehensively by preferably 2:1, so that the dredging efficiency is improved.

As an embodiment, the bottom of the tank 1 is provided with the first inclined plate 18 and the second inclined plate 19, the inclination of the long rake 141 and the inclination of the short rake 142 are both adapted to the inclination of the first inclined plate 18, the inclination of the stirring blade 152 is adapted to the inclination of the second inclined plate 19, so as to prevent the occurrence of stirring dead angles and improve the dredging effect.

As an implementation mode, a discharge hole 20 is formed in one side, far away from the first inclined plate 18, of the second inclined plate 19, and a screw conveyor 21 is arranged in one side, far away from the second inclined plate 19, of the discharge hole 20, so that automatic discharging is achieved, labor intensity of workers is reduced, and production efficiency is improved.

Specifically, screw conveyer 21 passes through manual valve 22 with discharge gate 20 to be connected, and screw conveyer 21 is provided with electric valve 23 in the one side of keeping away from discharge gate 20, can open or close manual valve 22 in good time to the discharge flow of control fermented material, electric valve 23's automated control has reduced workman's intensity of labour, improves the safety in utilization simultaneously.

As an embodiment, the driving mechanism comprises two motors 24, so that the efficient operation of the stirring shaft 2 is ensured, meanwhile, the stability and the reliability of the device are improved, a gear 27 box 25 is arranged between the two motors 24, a slewing bearing 26 and a gear 27 are arranged in the gear 27 box 25, the gear 27 is connected with the motors 24 through a speed reducer 28 and meshed with the slewing bearing 26, the energy is saved, the load of the motors 24 is lightened, a transmission shaft 29 is arranged on one side, away from the motors 24, of the slewing bearing 26, and the transmission shaft 29 is connected with the stirring shaft 2 through a coupler 30, so that vibration and impact caused by transmission mismatch can be reduced, and the service life of the device is prolonged.

As an implementation manner, the lower end of the tank body 1 is provided with a plurality of supporting seats, each supporting seat comprises a first upright column 31 and a second upright column 32, the first upright column 31 is arranged at the outer edge of the tank body 1, and the second upright column 32 is arranged around the discharge hole 20, so that the load of the tank body 1 can be uniformly distributed, and the stability and safety of the tank body 1 are improved;

the upper end of the tank body 1 is provided with a feed inlet 33 and an air outlet 34, and the feed inlet 33 and the air outlet 34 are respectively positioned on two sides of the motor 24, so that the operation is convenient, and meanwhile, the interference generated during the feeding and the air outlet can be avoided.

The working principle of the dry fermentation tank is as follows: the material is introduced into the tank body 1 through the feed inlet 33, the motor 24 is started, the transmission shaft 29 and the stirring shaft 2 are driven to rotate together through the speed reducer 28, the first stirring assembly, the second stirring assembly and the third stirring assembly are driven to rotate, fermented material is comprehensively mixed, methane generated during the process is discharged through the air outlet 34, after fermentation is completed, the manual valve 22 and the electric valve 23 are opened, the screw conveyor 21 is started, along with the rotation of the stirring shaft 2, the rake teeth 143 and the stirring blades 152 are used for cleaning and dispersing the material piled on the first inclined plate 18 and the second inclined plate 19 respectively, and the material is orderly discharged out of the tank body 1 through the discharge hole 20 and the screw conveyor 21.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (10)

1. The dry fermentation device is characterized by comprising a tank body, a driving mechanism and a stirring mechanism, wherein the stirring mechanism is arranged in the tank body and is connected to the lower end of the driving mechanism;

the stirring mechanism comprises a stirring shaft, a first stirring assembly, a second stirring assembly and a third stirring assembly, and the first stirring assembly, the second stirring assembly and the third stirring assembly are sequentially arranged on the stirring shaft from top to bottom;

the first stirring assembly comprises a first stirring rod and a supporting frame, wherein a plurality of stirring columns are arranged at the lower end of the first stirring rod, the supporting frames are symmetrically distributed on two sides of the first stirring rod, one end, far away from the stirring shaft, of the first stirring rod is connected with the stirring shaft through a first diagonal draw bar, and one end, far away from the stirring shaft, of the supporting frame is connected with the stirring shaft through a second diagonal draw bar.

2. The dry fermentation device according to claim 1, wherein the support frame comprises a first connecting rod, a second connecting rod and a third connecting rod, the second connecting rod and the third connecting rod are arranged on two sides of the first connecting rod in an inclined symmetrical mode, the first connecting rod is vertically arranged in the middle of the first stirring rod, one ends of the second connecting rod and the third connecting rod are connected with the first connecting rod, and the other ends of the second connecting rod and the third connecting rod are connected with the first stirring rod.

3. The dry fermentation device according to claim 1, wherein the stirring columns are staggered on both sides of the first stirring rod along the length direction of the first stirring rod, and the length of the stirring columns is gradually increased from the middle to both sides.

4. The dry fermentation device of claim 1, wherein the second stirring assembly comprises a plurality of groups of stirring frames, two adjacent groups of stirring frames are arranged in a staggered manner, each stirring frame comprises a second stirring rod, a first telescopic rod, a second telescopic rod and a supporting rod, one end of each second stirring rod is rotatably connected with the stirring shaft, and the other end of each second stirring rod is sequentially connected with the stirring shaft from top to bottom through the first telescopic rod, the supporting rod and the second telescopic rod.

5. The dry fermentation device of claim 1, wherein the third stirring assembly comprises a rake and a dredging frame, the dredging frame is arranged below the rake, the rake comprises a long rake and a short rake which are arranged adjacently, the lower ends of the long rake and the short rake are provided with a plurality of rake teeth in an inclined arrangement, the dredging frame comprises a connecting column and stirring blades, and the stirring blades are arranged on the connecting column.

6. The dry fermentation device according to claim 5, wherein the end of the long harrow frame away from the stirring shaft is connected with the stirring shaft through a third diagonal draw bar, and the end of the short harrow frame away from the stirring shaft is connected with the long harrow frame through a fourth diagonal draw bar.

7. The dry fermentation device according to claim 5, wherein the tank bottom is provided with a first inclined plate and a second inclined plate, the inclination of the long rake and the inclination of the short rake are adapted to the inclination of the first inclined plate, and the inclination of the stirring blade is adapted to the inclination of the second inclined plate.

8. The dry fermentation device of claim 7, wherein a side of the second inclined plate remote from the first inclined plate is provided with a discharge port, and a side of the discharge port remote from the second inclined plate is provided with a screw conveyor.

9. The dry fermentation device of claim 8, wherein the driving mechanism comprises two motors, a gear box is arranged between the two motors, a slewing bearing and a gear are arranged in the gear box, the gear is connected with the motors through a speed reducer and meshed with the slewing bearing, a transmission shaft is arranged on one side of the slewing bearing away from the motors, and the transmission shaft is connected with the stirring shaft through a coupling.

10. The dry fermentation device of claim 9, wherein a plurality of support seats are arranged at the lower end of the tank body, the support seats comprise a first upright post and a second upright post, the first upright post is arranged at the outer edge of the tank body, and the second upright post is arranged around the discharge hole;

the upper end of the tank body is provided with a feed inlet and an air outlet, and the feed inlet and the air outlet are respectively positioned at two sides of the motor.