CN206970616U - Fermentation tank scum silica frost removal device - Google Patents

Abstract

The utility model proposes a fermentation tank scum removal device, which includes a fermentation tank with a chamber formed inside, and a stirring assembly is arranged in the chamber of the fermentation tank, and the fermentation tank corresponds to the scum layer in the fermentation tank A discharge port is provided, and a feed port is provided below the discharge port of the fermenter, and a scum removal component is connected to the fermenter, and the scum removal component includes a scum and solution that can be fed from the feed port. A material conveying pipeline that is transported to the material outlet, and the two ends of the material conveying pipeline communicate with the feed inlet and the material outlet of the fermenter respectively. The utility model can fundamentally remove the scum of cellulose raw materials.

Description

Fermentation tank scum removal device

technical field

The utility model belongs to the technical field of fermentation, in particular to a device for removing scum in a fermentation tank.

Background technique

During the biomass fermentation process, the fermentation system is prone to stratification, and the upper layer is the scum layer. There are many reasons for the formation of the scum layer. Taking the anaerobic fermentation process of cellulose raw materials as an example, the scum layer is due to the small proportion of cellulose raw materials entering the anaerobic system, and then naturally floats up in the anaerobic system. The second is that the cellulose raw materials in the reaction system are easy to absorb the biogas bubbles generated in the system and then float up. The existence of the scum layer is prone to crusting, which will easily lead to the reduction of the effective volume of the reactor, hinder the biogas from the reaction system into the gas chamber, and block the discharge nozzle.

Chinese invention patent CN205774508U discloses a shell breaking device for the top scum of a biogas fermentation tank, a shell device and a shell breaking method thereof. The cracking device includes a diversion tube and a stirrer, the diversion tube is set in the biogas fermentation tank, the upper end and the lower end of the diversion tube are set in the shape of a bell mouth, the middle part is cylindrical, and the top surface of the bell mouth of the upper end of the guide tube is lower than the liquid level in the biogas fermentation tank; the agitator includes a motor, a reducer, a stirring shaft and a stirring paddle, the motor is set on the top of the biogas fermentation tank, the agitating paddle is located under the bell mouth at the lower end of the draft tube, and one end of the agitating shaft is decelerated The device is connected with the motor, and the other end is connected with the stirring paddle through the inner cavity of the guide cylinder. When the shell breaking device is used to remove the scum of the raw material with strong fluidity, it can well break up the scum of the raw material, thereby effectively removing the scum and avoiding the crusting phenomenon.

However, when the above-mentioned shell-breaking device is used to remove raw material scum (such as cellulose raw materials) with high solid content and strong adsorption between components, the rotation of the stirring blade is more to make the scum The effect of circular rotation around the axis of the stirring blade, and at the same time, the scum after passing through the guide tube will fully contact with the air, so that the scum can absorb more fine bubbles. In addition, in actual engineering applications, even if the The rotating speed of the stirring blades cannot effectively overcome the above-mentioned defects, so that the scum cannot be fundamentally removed, and the occurrence of crusting cannot be effectively avoided.

Contents of the invention

The utility model aims at the technical problem that the existing fermentation tank scum removal device cannot fundamentally remove the scum, and proposes a fermentation tank scum removal device which can fundamentally remove the scum.

In order to achieve the above object, the technical solution adopted by the utility model is:

A device for removing scum from a fermenter, comprising a fermenter with a chamber formed inside, a stirring assembly is arranged in the chamber of the fermenter, and a discharge outlet is provided on the fermenter corresponding to the scum layer in the fermenter A feed port is provided below the discharge port of the fermenter, and the fermenter is connected with a scum removal component, which includes a scum and solution that can be transported from the feed port to the discharge port. The two ends of the feeding pipeline communicate with the feeding port and the feeding port of the fermenter respectively.

Preferably, the scum removal assembly further includes a crushing unit capable of crushing the scum in the conveying pipeline, and the crushing unit is fixedly arranged on the conveying pipeline.

Preferably, the crushing unit includes a rotating shaft, and a stirring blade that can rotate synchronously with the rotating shaft, the stirring blade is coaxially arranged with the rotating shaft, and both the stirring blade and the rotating shaft are located at the end of the feeding pipeline inside the chamber.

Preferably, the crushing unit further includes a driving member capable of driving the rotating shaft to rotate, a power output end of the driving member is connected to the rotating shaft, and a fixed end of the driving member is fixedly connected to the feeding pipeline.

Preferably, the feed pipeline includes a first pipeline part and a second pipeline part, one end of the first pipeline part is in detachable and sealed communication with the discharge port of the fermenter, and the other end of the first pipeline part The side part is in detachable and sealing communication with the second pipe part, and the other end of the second pipe part is in detachable and sealing communication with the feed port of the fermenter, and the number of the crushing units is set to multiple, at least one The crushing unit is fixedly arranged on the first pipe part, and at least one of the crushing units is fixedly arranged on the second pipe part.

Preferably, the side part of the first pipe part away from the end of the fermenter is in detachable and sealed communication with the second pipe part, and the end part of the first pipe part far away from the end of the fermenter is in communication with at least one of the The fixed end of the driving member is fixedly connected, the side part of the second pipe part away from the end of the fermenter is in detachable and sealed communication with the first pipe part, and the end part of the second pipe part away from the end of the fermenter It is connected with the fixed end of at least one driving element.

Preferably, the feed pipeline further includes a third pipeline part, one end of the third pipeline part is in detachable and sealed communication with the end of the first pipeline part away from the fermenter, and the other end of the third pipeline part One end is in detachable and sealed communication with the end of the second pipe part away from the fermenter, and at least one crushing unit is arranged on the third pipe part.

Preferably, the stirring blades are helical blades or stirring paddles.

Preferably, the chamber of the fermenter is provided with a deflector that can guide the scum and the solution to the discharge port of the fermenter, and the deflector is arranged corresponding to the discharge port of the fermenter. The flow guide is fixedly connected with the fermenter.

Preferably, the deflector is configured as a baffle, and the deflector is located at the outlet of the fermenter and is in contact with the scum layer.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. The scum removal device for the fermenter of the present invention can compress the volume of the scum and the solution discharged from the discharge port of the fermenter by arranging the feed pipeline, thereby promoting the air bubbles adsorbed on the raw material Effective separation is obtained between the chamber of the feeding pipeline and the raw materials. On the other hand, the raw materials can be fully mixed with the solution in the chamber of the feeding pipeline, and at the same time, the raw materials are returned to the fermenter. Fully mixed with the solution in the fermenter, so that the specific gravity of the raw material can be greatly increased due to the full absorption of water. The scum is formed again, and compared with the existing scum removal device, the scum can be fundamentally removed.

2. The scum removal device for the fermentation tank of the utility model is provided with a crushing unit on the feeding pipeline, so as to fully contact with the scum in the limited space of the feeding pipeline chamber, and then fully crush the scum Crushing, that is, the process of conveying, removing and crushing the scum is realized at the same time, thus significantly improving the working efficiency of the scum removal device of the fermentation tank.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model embodiment;

Fig. 2 is a schematic structural view along the A-A section direction in Fig. 1;

Fig. 3 is a schematic diagram of the internal structure of the stirring unit in the embodiment of the utility model;

In the above figures: 1. Fermentation tank; 2. Stirring assembly; 2-1. Stirring shaft; 2-2. Rotating paddle; 3. Scum removal assembly; The first pipeline part; 3-1-2, the second pipeline part; 3-1-3, the third pipeline part; 3-2, the crushing unit; 3-2-1, the rotating shaft; 3-2-2, the stirring blade ; 3-2-3, the driving piece; 4, the guide piece; 5, the first connecting pipe.

Detailed ways

Below, the utility model is described in detail through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "horizontal direction" and "vertical direction" are based on the attached The positional relationship shown in Figure 1 is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to the present invention. Utility model restrictions. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

Referring to Fig. 1 to Fig. 3, a fermenter scum removal device comprises a fermenter 1 with a chamber formed inside, a feed inlet and a discharge port are provided on the fermenter 1, and the outlet of the fermenter 1 is The feed port is opened corresponding to the scum layer in the fermenter 1, so as to effectively discharge the scum of the fermenter 1, and the feed port of the fermenter 1 is located at the outlet of the fermenter 1. Below, the feed port of the fermenter 1 is used to receive the material discharged from the outlet of the fermenter 1, and the material is directly discharged into the solution, thereby avoiding the contact between the raw material and the air, and at the same time making the raw material and the fermenter The solution in the tank 1 is fully contacted; the chamber of the fermenter 1 is provided with a stirring assembly 2, which on the one hand stirs the solution at the lower part of the scum layer in the fermenter 1, and on the other hand makes the The scum in the fermentation tank 1 rotates, and then the scum is quickly and smoothly discharged through the outlet of the fermentation tank 1; the fermentation tank 1 is connected with a scum removal assembly 3, and the scum removal assembly 3 It includes a feed pipeline 3-1 that can transport scum and solution from the feed inlet to the discharge outlet, and the two ends of the feed pipeline 3-1 are connected to the feed inlet and the discharge outlet of the fermenter 1 respectively. connected.

The scum removal device for the fermentation tank of the utility model is provided with the feeding pipeline 3-1, on the one hand, the volume of the scum and the solution discharged from the outlet of the fermentation tank 1 can be compressed, thereby promoting adsorption on the raw material The air bubbles are effectively separated from the raw materials in the chamber of the feeding pipeline 3-1. On the other hand, the raw materials can be fully mixed with the solution in the chamber of the feeding pipeline 3-1, and the raw materials can be mixed at the same time. After returning to the fermenter 1, it is fully mixed with the solution in the fermenter 1, so that the specific gravity of the raw material is greatly increased due to the full absorption of water. Therefore, the scum removal device for the fermenter of the utility model can make the raw material When returning to the chamber of the fermenter 1 , the scum cannot be formed again, and compared with the existing scum removal device, the scum can be fundamentally removed. In addition, since the stirring assembly 2 only plays an auxiliary role in the process of removing scum, it is not necessary to strictly adjust the position and stirring rate of the stirring assembly 2, so as to remove the scum in the fermenter of the utility model. The working efficiency of the device is significantly improved.

Based on the above, as an embodiment of the present utility model, as shown in Figure 1 and Figure 2, the stirring assembly 2 specifically includes a stirring shaft 2-1, a rotating paddle 2-2 and a drive motor, the stirring shaft 2- 1 is arranged in the vertical direction, the top of the stirring shaft 2-1 is connected to the power output end of the driving motor, and the driving motor is used to drive the stirring shaft 2-1 to rotate, and the base of the driving motor Fixedly connected with the fermenter 1, the rotating paddle 2-2 is fixedly connected to the bottom end of the stirring shaft 2-1, and rotates synchronously with the stirring shaft 2-1, and the rotating paddle 2-2 uses Stretch into the solution in the chamber of the fermenter 1 to make the solution and the scum above the solution circulate; referring to Fig. 1 and Fig. 2, in order to facilitate the setting of the conveying material path of the conveying pipeline 3-1, the The feeding pipeline 3-1 includes a first pipeline part 3-1-1, a second pipeline part 3-1-2 and a third pipeline part 3-1-3, and one end of the first pipeline part 3-1-1 It is in detachable and sealed communication with the discharge port of the fermenter 1, and the other end of the first pipe part 3-1-1 is in detachable and sealed communication with one end of the third pipe part 3-1-3. The other end of the third pipe part 3-1-3 is in detachable and sealed communication with one end of the second pipe part 3-1-2, and the other end of the second pipe part 3-1-2 is in communication with the fermentation tank. 1’s feed inlet can be detachably sealed, so that by dividing the feed pipeline 3-1 into a plurality of independent modules, on the one hand, it is convenient to adjust the posture of the feed pipeline 3-1, even for The path of material conveying is adjusted so that the material can be conveyed in the most efficient manner. On the other hand, each independent module of the conveying pipeline 3-1 can be selected or replaced according to actual needs. In addition, by dividing the feeding pipeline 3-1 into the first pipeline part 3-1-1, the second pipeline part 3-1-2 and the third pipeline part 3-1-3, the It forms a quadrilateral structure with the fermenter 1, which is more conducive to the adjustment of the posture of the feeding pipeline 3-1 during installation.

Specifically, as shown in Figure 1 and Figure 2, a first connecting pipe 5 is connected between the first pipe part 3-1-1 and the third pipe part 3-1-3, and the first pipe The side part of the part 3-1-1 away from the end of the fermenter 1 is provided with a through hole, and the side part of the third pipe part 3-1-3 close to the end of the first pipe part 3-1-1 is provided with a Through holes, the two ends of the first connecting pipe 5 are respectively in sealing communication with the through holes of the first pipe part 3-1-1 and the through holes of the third pipe part 3-1-3; similarly, A second connecting pipe is connected between the third pipe part 3-1-3 and the second pipe part 3-1-2, which will not be described in detail here; preferably, the first pipe part 3-1-2 1-1 is arranged obliquely downward from the fermenter 1 to the third pipeline part 3-1-3, the third pipeline part 3-1-3 is arranged along the vertical direction, and the second pipeline Section 3-1-2 is arranged along the horizontal direction.

Further, due to the limited effect of the stirring assembly 2 on scum crushing, the time required for the larger scum to achieve the effect of fully absorbing water and separating air bubbles in the chamber of the delivery pipeline 3-1 Longer, which in turn will affect the work efficiency of the device to remove scum, so in order to improve the work efficiency of the device to remove scum, see Figures 1 to 3, the scum removal assembly 3 also includes a The crushing unit 3-2 for crushing the scum, the crushing unit 3-2 is fixedly arranged on the conveying pipeline 3-1, so as to communicate with the scum in the limited space of the chamber of the conveying pipeline 3-1 Fully contact, and then fully crush the scum, that is, realize the process of conveying, removing and crushing the scum at the same time, thereby significantly improving the working efficiency of the scum removal device of the fermentation tank.

Specifically, as shown in Figures 1 to 3, the crushing unit 3-2 includes a rotating shaft 3-2-1, a stirring blade 3-2-2 that can rotate synchronously with the rotating shaft 3-2-1, and can The driving member 3-2-3 that drives the rotating shaft 3-2-1 to rotate, the number of the crushing units 3-2 is set in multiples, and at least one of the crushing units 3-2 is fixedly arranged in the first pipeline On the part 3-1-1, as shown in Figure 3, the stirring blade 3-2-2 is preferably a spiral blade, and the stirring blade 3-2-2 is coaxially arranged with the rotating shaft 3-2-1, That is, it forms a screw shaft with the rotating shaft 3-2-1, and the stirring blade 3-2-2 and the rotating shaft 3-2-1 are both located in the chamber of the feeding pipeline 3-1, and the first The end of the pipe part 3-1-1 away from the end of the fermenter 1 is provided with a through hole, and the end of the rotating shaft 3-2-1 is sleeved in the through hole of the first pipe part 3-1-1 inside and connected with the driver 3-2-3, the driver 3-2-3 is located outside the first pipe part, the fixed end of the driver 3-2-3 is connected with the first pipe The end part away from the end of the fermenter 1 is fixedly connected, and the power output end of the driving member 3-2-3 is connected to the end of the rotating shaft 3-2-1 to drive the rotating shaft 3-2- 1 rotation; similarly, at least one crushing unit 3-2 is fixedly arranged on the second pipe part 3-1-2, and at least one crushing unit 3-2 is fixedly arranged on the third pipe part 3 -1-3, which will not be described in detail here.

The scum removal device for the fermentation tank of the utility model is provided with a screw shaft, on the one hand, the scum in the chamber of the feeding pipeline 3-1 is fully crushed, and then the crushed scum bubbles are quickly discharged, and at the same time, the crushed scum is The scum is quickly and fully mixed with the solution. On the other hand, the spiral rotation can promote the rapid transportation of the scum and the solution along the predetermined direction. Therefore, the above-mentioned settings of the utility model can effectively remove the scum in the shortest time.

Preferably, the driving member 3-2-3 may be one of a servo motor, a stepping motor or a hydraulic motor.

In addition, the agitating blade 3-2-2 may be serrated, so as to crush the scum more efficiently.

It should be noted that the above-mentioned screw shaft can be replaced by a stirring blade, that is, the stirring blade 3-2-2 is a stirring blade, and at the same time, the stirring blade 3-2-2 can be rotated along the axis of the rotating shaft 3-2-1 There are several orientation settings.

Further, in order to ensure that the scum in the fermenter 1 can all enter the feeding pipeline 3-1, referring to Fig. 1 and Fig. 2, the chamber of the fermenter 1 is provided with a device that can guide the scum and the solution. The flow guide 4 to the discharge port of the fermenter 1 is arranged corresponding to the discharge port of the fermenter 1 , and the flow guide 4 is fixedly connected to the fermenter 1 . The scum removal device for the fermentation tank of the utility model can block the circulating scum at the outlet of the fermentation tank 1 by setting the flow guide 4, and then change the direction of the blocked scum to pass through the The outlet of the fermenter 1 flows into the chamber of the feeding pipeline 3-1, thereby effectively ensuring that the scum in the fermenting tank 1 can all enter the feeding pipeline 3-1, thereby ensuring that all All the scum in the fermentor 1 is fully removed.

Specifically, as shown in Figure 1 and Figure 2, the guide 4 is set as a baffle, the guide 4 is located at the outlet of the fermenter 1 and is in contact with the scum layer, the guide The flow member 4 is located on the side of the discharge port of the fermenter 1 along the running direction of the scum, the flow guide 4 is fixedly connected with the fermenter 1, and the bottom of the flow guide 4 extends into the fermenter. In the solution in the chamber of the tank 1 , the top of the guide member 4 is higher than the height of the scum layer in the chamber of the fermenter 1 . The device for removing scum in the fermentation tank of the utility model ensures that the scum in the chamber of the fermentation tank 1 is effectively guided by setting the guide member 4 as a baffle, and at the same time greatly simplifies the structure and reduces the cost.

In order to better understand the technical solution of the utility model, referring to Fig. 1 to Fig. 3, the working process of the utility model fermentation tank scum removal device is as follows:

Firstly, the stirring assembly 2 is operated, so that the scum and the solution in the chamber of the fermenter 1 are circulated due to gaining kinetic energy (moving in the direction of the arrow as shown in Figure 2), and then the fermenter 1 The scum and solution in the chamber are transported to the discharge port of the fermenter 1 under the diversion action of the guide member 4, and are transported to the feed pipeline 3 through the discharge port of the fermenter 1 -1 in the chamber; the scum is squeezed in the chamber of the feeding pipeline 3-1 due to the reduction of the space volume, and then the air bubbles are discharged, and the rotating shaft 3 is driven by the driving member 3-2-3 at this time -2-1 rotates, and then makes the stirring blade 3-2-2 fully pulverize the scum, so as to promote the rapid separation of air bubbles and raw materials, and fully mix the raw materials with the solution; finally, the raw materials after fully absorbing water pass through The feed port of the fermenter 1 returns to the solution in the chamber of the fermenter 1, and the scum cannot be formed again due to the large specific gravity and no air bubble adsorption. The feed port of the fermenter 1 also returns to the solution in the chamber of the fermenter 1, and by fully mixing with the solution in the chamber of the fermenter 1, the sufficient absorption of moisture is realized, and then it itself is caused by Large specific gravity and no air bubble adsorption to form scum again.

Claims (10)

1. a kind of fermentation tank scum silica frost removal device, including the fermentation tank (1) of chamber is internally formed, the chamber of the fermentation tank (1) Interior is provided with mixing component (2), it is characterised in that：Opened on the fermentation tank (1) corresponding to the fermentation tank (1) interior scum layer Provided with discharging opening, charging aperture is offered below the discharging opening of the fermentation tank (1), the fermentation tank (1) is connected with scum silica frost Except component (3), the scum silica frost removes the feeding pipe that component (3) includes scum silica frost and solution can be delivered to discharging opening from charging aperture (3-1), the both ends of the feeding pipe (3-1) connect with the charging aperture and discharging opening of the fermentation tank (1) respectively.

2. fermentation tank scum silica frost removal device according to claim 1, it is characterised in that：The scum silica frost removes component (3) also Including the pulverizing unit (3-2) that can crush the interior scum silica frost of feeding pipe (3-1), the pulverizing unit (3-2) is fixedly installed on institute State on feeding pipe (3-1).

3. fermentation tank scum silica frost removal device according to claim 2, it is characterised in that：The pulverizing unit (3-2) includes Rotating shaft (3-2-1), and can be with the stirring vane (3-2-2) of the rotating shaft synchronous axial system, the stirring vane (3-2-2) and institute State rotating shaft (3-2-1) to be coaxially disposed, the stirring vane (3-2-2) and the rotating shaft (3-2-1) are respectively positioned on the feeding pipe In the chamber of (3-1).

4. fermentation tank scum silica frost removal device according to claim 3, it is characterised in that：The pulverizing unit (3-2) is also wrapped Include the actuator (3-2-3) that the rotating shaft (3-2-1) can be driven to rotate, the clutch end of the actuator (3-2-3) and institute Rotating shaft (3-2-1) connection is stated, the fixing end of the actuator (3-2-3) is fixedly connected with the feeding pipe (3-1).

5. fermentation tank scum silica frost removal device according to claim 4, it is characterised in that：The feeding pipe (3-1) includes First pipe section (3-1-1) and second pipe portion (3-1-2), one end and the fermentation tank of first pipe section (3-1-1) (1) discharging opening removable seal connection, other end sidepiece and the second pipe portion of first pipe section (3-1-1) (3-1-2) removable seal connects, and the other end of the second pipe portion (3-1-2) can with the charging aperture of the fermentation tank (1) Dismounting sealing connection, the quantity of the pulverizing unit (3-2) are arranged to multiple, and at least one pulverizing unit (3-2) is fixed It is arranged on first pipe section (3-1-1), at least one pulverizing unit (3-2) is fixedly installed on the second pipe In portion (3-1-2).

6. fermentation tank scum silica frost removal device according to claim 5, it is characterised in that：First pipe section (3-1-1) Sidepiece away from the fermentation tank (1) one end connects with second pipe portion (3-1-2) removable seal, first pipeline The fixing end of end of the portion (3-1-1) away from the fermentation tank (1) one end and at least one actuator (3-2-3), which is fixed, to be connected Connect, sidepiece of the second pipe portion (3-1-2) away from the fermentation tank (1) one end can with first pipe section (3-1-1) Dismounting sealing connection, end of the second pipe portion (3-1-2) away from the fermentation tank (1) one end and at least one drive The fixing end connection of moving part (3-2-3).

7. fermentation tank scum silica frost removal device according to claim 5, it is characterised in that：The feeding pipe (3-1) is also wrapped The 3rd pipe section (3-1-3) is included, one end of the 3rd pipe section (3-1-3) is with first pipe section (3-1-1) away from institute State one end removable seal connection of fermentation tank (1), the other end and the second pipe portion of the 3rd pipe section (3-1-3) One end removable seal connection of (3-1-2) away from the fermentation tank (1), at least one pulverizing unit (3-2) are arranged at On 3rd pipe section (3-1-3).

8. the fermentation tank scum silica frost removal device according to any one of claim 3-7, it is characterised in that：The stirring vane (3-2-2) is helical blade or stirrer paddle.

9. the fermentation tank scum silica frost removal device according to any one of claim 1-7, it is characterised in that：The fermentation tank (1) scum silica frost and solution can be directed to the conducting element (4) of the fermentation tank (1) discharging opening, the water conservancy diversion by being provided with chamber Part (4) is set corresponding to the fermentation tank (1) discharging opening, and the conducting element (4) is fixedly connected with the fermentation tank (1).

10. fermentation tank scum silica frost removal device according to claim 9, it is characterised in that：The conducting element (4) is arranged to keep off Plate, the conducting element (4) are located at the discharge outlet of the fermentation tank (1) and contacted with scum layer.