CN220531512U

CN220531512U - Double-roller granulator

Info

Publication number: CN220531512U
Application number: CN202321485974.4U
Authority: CN
Inventors: 高航; 王天成
Original assignee: Baike New Materials Rizhao Co ltd
Current assignee: Baike New Materials Rizhao Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2024-02-27
Anticipated expiration: 2033-06-12

Abstract

The utility model provides a twin-roll granulator, which comprises a box body and a heat-insulating plate, wherein the heat-insulating plate is transversely arranged in the box body and is used for dividing the interior of the box body into a heat-insulating part and a cooling part; the feeding structure is arranged in the box body and is positioned above the material conveying structure and used for feeding molten materials; the material conveying structure is arranged in the box body, penetrates through the heat insulation plate and is used for conveying molten materials and forming particles; the molding structure is arranged in the box body and positioned in the heat preservation part, and is abutted with the material conveying structure and used for pressing and molding the molten material on the material conveying structure; and the blanking structure is arranged in the box body and positioned below the material conveying structure and is used for blanking formed particles.

Description

Double-roller granulator

Technical Field

The utility model relates to the technical field of granulation, in particular to a twin-roll granulator.

Background

The existing biological fillers applied to sewage treatment are mostly inert fillers which do not participate in the reaction, and the problems of high manufacturing cost, need to be washed up periodically and the like exist, so that the existing sewage treatment is more adopting active fillers which are granular and have pores on the granules. The specific surface area of the particles, namely the pores, gradually increases with the subsequent treatment of sewage, so that the active filler can provide more living space for microorganisms. In addition, the active biological filler gradually becomes smaller along with the progress of the reaction, and is reduced to a certain particle size to be discharged out of the reactor along with sewage, so that the treatment efficiency of the reactor can be greatly improved.

The biological preparation of the active filler in the existing sewage treatment is mainly carried out by granulating by a dry powder granulating method, and when biological particles prepared by the dry powder granulating method are placed in water, the particles have insufficient mechanical strength and are easy to crush; the particle size of the granules prepared by the dry powder granulating method is also uneven, the requirements of the active biological fillers applied to sewage treatment on the particle size are strict, and the biological fillers with different particle sizes are placed in sewage treatment equipment to easily cause the active biological fillers with small particle sizes to be carried out of the reactor, so that the water inlet flow rate of the sewage treatment equipment is difficult to control.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model provides a twin-roll granulator, which aims to solve the technical problem that granules prepared in the prior art are easy to break.

A twin-roll granulator comprises a box body and

the heat insulation plate is transversely arranged in the box body and is used for dividing the interior of the box body into a heat insulation part and a cooling part;

the feeding structure is arranged in the box body and is positioned above the material conveying structure and used for feeding molten materials;

the material conveying structure is arranged in the box body, penetrates through the heat insulation plate and is used for conveying molten materials and forming particles;

the molding structure is arranged in the box body and positioned in the heat preservation part, and is abutted with the material conveying structure and used for pressing and molding the molten material on the material conveying structure;

and the blanking structure is arranged in the box body and positioned below the material conveying structure and is used for blanking formed particles.

Preferably, the cooling device further comprises a knocking structure, wherein the knocking structure is arranged in the box body and located in the cooling part, and the knocking structure is in butt joint with the material conveying structure and used for knocking down formed particles on the material conveying structure.

Preferably, the box body is provided with an air inlet facing the inside of the heat preservation part, and a spray pipe positioned in the cooling part is arranged in the box body.

Preferably, the feeding structure comprises two feeding plates, the upper surface of the box body is provided with a feeding opening, the two feeding plates are obliquely arranged at the feeding opening respectively, and the two feeding plates are positioned at one end of the box body and are close to each other, so that the feeding structure is in a V shape.

Preferably, the material conveying structure comprises two groups of rotating rollers, wherein two rotating rollers in each group are respectively connected in the box body in a one-to-one rotating manner, one rotating roller is positioned in the heat preservation part, and the other rotating roller is positioned in the cooling part;

a material conveying steel belt penetrating through the heat insulation plate is arranged between each group of rotating rollers, and a plurality of hemispherical grooves which are in one-to-one correspondence are respectively arranged on the two material conveying steel belts; the forming structure is abutted with the two material conveying steel belts.

Preferably, the forming structure comprises two forming rollers, and the two forming rollers are rotatably connected in the box body, are both positioned in the heat preservation part and are arranged at the same height;

the two forming rollers are abutted with the two material conveying steel belts, so that the two material conveying steel belts are abutted when passing between the forming rollers;

the two rotating rollers in the cooling part are respectively positioned right below the two forming rollers, so that the material conveying steel belts passing between the forming rollers are kept in a mutually attached state.

Preferably, the blanking structure comprises two blanking sieve plates, the two blanking sieve plates are arranged at the box body in an up-down inclined mode, and blanking holes with different apertures are respectively formed in the two blanking sieve plates.

Preferably, the knocking structure comprises two mounting plates, a knocking roller is arranged between the two mounting plates, the two mounting plates are connected through a main shaft, and the knocking roller is rotatably connected in the box body through the main shaft, so that the knocking roller is abutted with the material conveying steel belt when the knocking roller rotates.

Preferably, a hot oil pipeline is arranged in the rotating main shaft of the forming roller, and a cooling pipeline is arranged in the rotating roller in the cooling part.

To sum up, when granulating, firstly throw in the molten material through throwing the material structure, because the box is divided into heat preservation portion and cooling portion by the heated board, therefore the molten material can keep the molten state and transport to shaping structure department through fortune material structure, with the shaping structure shaping into granule with the molten material, the granule of shaping is in transporting to unloading structure department through fortune material structure to accomplish the pelletization. The forming is in the heat preservation part, and particles can be rapidly fallen off from the material conveying structure after being cooled when being conveyed into the cooling part through the material conveying structure.

The particle size of the granulated active biological filler is consistent, the active biological filler with small particle size is prevented from being carried out of the reactor in the sewage treatment process, the mechanical strength of the prepared particles is also good, and the particles are not easy to break in the sewage treatment process.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure provided in one embodiment of the present utility model;

FIG. 2 is a schematic diagram of an internal structure provided in one embodiment of the present utility model;

fig. 3 is a schematic diagram of a material transporting structure and a forming structure according to one embodiment of the present utility model.

In the above figures, the list of components represented by the various numbers is as follows:

10. a case; 101. a heat preservation part; 102. a cooling unit; 20. a thermal insulation board; 30. a feeding structure; 301. a feeding plate; 302. a feed port; 40. a material conveying structure; 401. a rotating roller; 402. a material conveying steel belt; 403. hemispherical grooves; 50. forming rollers; 501. a hot oil line; 502. a cooling pipeline; 60. discharging a sieve plate; 70. knocking the structure; 701. a mounting plate; 702. knocking the roller; 80. an air inlet; 90. a spray pipe.

Detailed Description

To further clarify the above and other features and advantages of the present utility model, a further description of the utility model will be rendered by reference to the appended drawings. It should be understood that the specific embodiments presented herein are for purposes of explanation to those skilled in the art and are intended to be illustrative only and not limiting.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

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 at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified 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; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, 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. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

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 utility model. 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Referring to fig. 1 to 3, in one embodiment of the present utility model, there is provided a twin-roll granulator, including a box 10, and an insulation board 20, wherein the insulation board 20 is transversely disposed in the box 10, for dividing the interior of the box 10 into an insulation part 101 and a cooling part 102; the feeding structure 30 is arranged in the box body 10 and is positioned above the material conveying structure 40, and is used for feeding molten materials; the material conveying structure 40 is arranged in the box body 10 and penetrates through the heat insulation plate 20 to convey molten materials and molding particles; the molding structure is arranged in the box body 10 and positioned in the heat preservation part 101, and is abutted with the material conveying structure 40 and used for pressing and molding the molten material on the material conveying structure 40; and a blanking structure is arranged in the box body 10 and positioned below the material conveying structure 40 and is used for blanking formed particles.

Other embodiments of the present application may be further augmented or defined by one or more of the following combinations based on the specific embodiments described above.

The device further comprises a knocking structure 70, wherein the knocking structure 70 is arranged in the box body 10 and is positioned in the cooling part 102, and the knocking structure 70 is abutted against the material conveying structure 40 and is used for knocking down formed particles on the material conveying structure 40.

The molten material is pressed and formed by the forming structure and naturally falls off. And the non-shedding particles may be forced off by the tapping of the tapping structure 70.

The box 10 is provided with an air inlet 80 facing the inside of the heat preservation part 101, and the box 10 is internally provided with a spray pipe 90 positioned in the cooling part 102.

The air inlet 80 can be connected with an air inlet pipeline so as to introduce hot air into the heat preservation part 101, thereby keeping the materials in a molten state; and the cooling water is sprayed to the material conveying structure 40 in the cooling part 102 through the spray pipe 90, so that the cooling of the formed particles is facilitated, and the falling-off process of the particles is accelerated.

The feeding structure 30 comprises two feeding plates 301, a feeding opening 302 is formed in the upper surface of the box body 10, the two feeding plates 301 are obliquely arranged at the feeding opening 302 respectively, and the two feeding plates 301 are located at one end of the box body 10 and are close to each other, so that the feeding structure 30 is in a V shape.

The material conveying structure 40 comprises two groups of rotating rollers 401, wherein the two rotating rollers 401 in each group are respectively connected in the box body 10 in a one-to-one rotating manner, one rotating roller is positioned in the heat preservation part 101, and the other rotating roller is positioned in the cooling part 102; a material conveying steel belt 402 penetrating through the heat insulation plate 20 is arranged between each group of rotating rollers 401, and a plurality of hemispherical grooves 403 which are in one-to-one correspondence are respectively arranged on the two material conveying steel belts 402; the forming structure is in abutment with two strip strips 402.

The forming structure comprises two forming rollers 50, and the two forming rollers 50 are rotatably connected in the box body 10, are both positioned in the heat preservation part 101 and are arranged at the same height; the two forming rollers 50 are abutted against the two material conveying steel belts 402, so that the two material conveying steel belts 402 are abutted when passing between the forming rollers 50; the two rotating rolls 401 located in the cooling section 102 are located directly below the two forming rolls 50, respectively, so that the strip of material 402 passing between the forming rolls 50 is kept in a fitted state.

The V-shaped structure formed by the two feeding plates 301 faces between the two steel belt 402, so after the molten material is fed through the feeding hole 302, the molten material is fed between the two steel belt 402 through the two inclined feeding plates 301, the two steel belt 402 moves under the action of the rotating roller 401, the molten material can be transported to the forming structure, the two forming rollers 50 are connected with an external motor to enable autorotation, the two forming rollers 50 can give pressure to the two steel belt 402 during autorotation, and the material is pressed between the hemispherical grooves 403 corresponding to the two steel belt 402 one by one through the pressure of the two forming rollers 50, so that particles are formed.

And the two rotating rollers 401 positioned in the cooling part 102 are respectively positioned right below the two forming rollers 50, so that the material conveying steel belts 402 passing between the forming rollers 50 keep a joint state, thereby ensuring that formed particles are always conveyed downwards in the grooves, and the particles cannot fall off until the two material conveying steel belts 402 are separated.

The blanking structure comprises two blanking sieve plates 60, wherein the two blanking sieve plates 60 are arranged at the box body 10 in an up-down inclined mode, and blanking holes with different apertures are respectively formed in the two blanking sieve plates 60.

The falling particles can directly fall onto the lower blanking sieve plate 60, and the active biological filler with unqualified particle size can be sieved out by the designated blanking sieve plate 60, so that the biological filler with qualified particle size is left.

The knocking structure 70 comprises two mounting plates 701, a knocking roller 702 is arranged between the two mounting plates 701, the two mounting plates 701 are connected through a main shaft, and the knocking roller 702 is rotatably connected in the box 10 through the main shaft, so that the knocking roller 702 is abutted with the material conveying steel belt 402 when rotating.

The main shaft on the knocking structure 70 is connected with a motor to enable the structure to rotate at first, and the knocking roller 702 can collide on the material conveying steel belt 402 during rotation, so that the particles which do not naturally fall off can be knocked down; and the tapping roller 702 may be provided in plurality so as to increase the frequency of tapping.

A hot oil line 501 is provided inside the rotating main shaft of the forming roll 50, and a cooling line 502 is provided inside the rotating roll 401 located in the cooling section 102.

The hot oil pipeline 501 can be communicated with hot oil to further increase the temperature of the forming roller 50, thereby facilitating forming; and the steel strip 402 passing through the rotating roller 401 can be further cooled by a cooling pipe.

To sum up, during granulation, firstly, molten materials are input through the material inlet 302, then, the materials are input between the two material conveying steel belts 402 through the inclined two material input plates 301, the two material conveying steel belts 402 move under the action of the rotating rollers 401, the molten materials can be conveyed to the forming structure, the two forming rollers 50 are connected with an external motor to enable the two forming rollers to rotate, the two material conveying steel belts 402 are pressed by the two forming rollers 50 during rotation, and the materials are pressed between the hemispherical grooves 403 corresponding to the two material conveying steel belts 402 one by one through the pressure of the two forming rollers 50, so that particles are formed.

The particle size of the granulated active biological filler is consistent after being screened by a blanking sieve plate 60, so that the active biological filler with small particle size is prevented from being carried out of the reactor in the subsequent sewage treatment process; the prepared particles are pressed and formed by pressing force and subjected to multiple cooling, so that the mechanical strength of the particles is good, and the particles are not easy to break in the sewage treatment process.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A twin-roll granulator is characterized by comprising a box body and

2. The twin roll granulator of claim 1 further comprising a knocking structure disposed within the housing and within the cooling section, the knocking structure being in abutment with the material handling structure for knocking down the formed particles on the material handling structure.

3. The twin-roll granulator according to claim 1, wherein the tank is provided with an air inlet facing the inside of the heat-retaining portion, and a shower pipe located in the cooling portion is provided in the tank.

4. The twin roll granulator according to claim 1, wherein the feeding structure comprises two feeding plates, the upper surface of the box body is provided with a feeding port, the two feeding plates are obliquely arranged at the feeding port respectively, and the two feeding plates are positioned at one end of the box body and are close to each other, so that the feeding structure is in a V shape.

5. The twin-roll granulator according to claim 2, wherein the material transporting structure comprises two sets of rotating rolls, wherein two rotating rolls in each set are respectively connected in the box body in a one-by-one rotating manner, one of the rotating rolls is positioned in the heat preservation part, and the other rotating roll is positioned in the cooling part;

6. The twin-roll granulator according to claim 5, wherein the forming structure comprises two forming rolls rotatably connected in the box and both located in the heat-retaining section and disposed at the same height;

7. The twin-roll granulator according to claim 1, wherein the blanking structure comprises two blanking screen plates, the two blanking screen plates are arranged at the box body in a vertically inclined mode, and blanking holes with different apertures are respectively formed in the two blanking screen plates.

8. The twin roll granulator of claim 5 wherein the tapping structure comprises two mounting plates, a tapping roller is disposed between the two mounting plates, the two mounting plates are connected by a spindle, and are rotatably connected in the housing by the spindle such that the tapping roller abuts against the strip of material when rotated.

9. The twin roll granulator according to claim 6, wherein the hot oil line is provided inside the main shaft of rotation of the forming roll, and the cooling line is provided inside the rotating roll in the cooling section.