CN217504157U - Paddle type dryer - Google Patents

Abstract

The utility model discloses and provides a paddle type dryer, which comprises a feed mixer, and a discharge port is arranged on the feed mixer; and also comprises a paddle shaft, which is extended in the feed mixer, It is used for stirring materials; the discharge control device is arranged on the discharge port and is used to control the discharge amount of the feed mixer. By adding a discharge control device to the dryer and eliminating the overflow plate, the discharge control device can adjust the discharge flow at any time according to production requirements, and can maintain the height of the material level in the feed mixer, ensuring indirect heat transfer. It has the advantages of high thermal efficiency, low energy consumption, controllable material level, and adjustable discharge volume.

Description

A paddle dryer

technical field

The utility model belongs to the field of drying equipment, in particular to a paddle type dryer.

Background technique

In the prior art, the overflow plate arranged at the end of the shell of the hollow blade dryer can effectively ensure the liquid level to meet the needs of evaporation, but this structure also inevitably has a dead angle of the material, and the discharge is not clean. Material-sensitive materials are not suitable and even bring risks to production. For the production of green and environmentally friendly fibers that the existing society strongly advocates, the dead corners of the overflow plate bring risks that cannot be ignored; after taking the overflow plate, although it can meet the requirements of FIFO, there is no dead material. Retention, but the material level is low, the discharge amount cannot be well controlled, and the heat transfer effect is poor, which greatly reduces the heat utilization efficiency.

The Chinese patent with the application number CN202902794U discloses a paddle dryer, which belongs to the field of machinery manufacturing and includes a frame, a motor, a reducer, and a main engine. The upper cover of the main machine is set on the main machine, the main machine includes the feeding end paddle and the discharging end paddle, the main shaft is set in the main body, and the discharge port is set at the discharging end of the main machine; the overflow plate is set on the main shaft near the discharge port, and the overflow plate A rake bar is set between the paddle at the discharge end.

The overflow plate set on the main shaft of the paddle dryer near the discharge port, although through the rake rod set between the overflow plate and the discharge end paddle, the material is turned over the overflow plate by the rake rod, but the overflow When the flow plate is discharged from the blade, there will still be a dead angle of the material, and the discharge volume cannot be controlled. The existence of the dead material in the production brings a risk that cannot be ignored.

In view of this, the present invention is proposed.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a paddle dryer, which cancels the overflow plate arranged at the front end of the discharge port, and ensures that the materials can be homogeneously mixed inside the feed mixer. , first in first out, the material inside the feed mixer can be completely discharged when the material is discharged, and the evaporation area is increased at the same time. By adding a discharge control device to the dryer, the discharge control device can adjust the discharge flow at any time according to production requirements, and can maintain the height of the material in the feed mixer, ensuring the indirect heat transfer strength and the blade shaft. Therefore, it is more practical, and has the advantages of high thermal efficiency, low energy consumption, controllable material level, and adjustable discharge volume.

In order to solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present utility model is: a paddle dryer, comprising,

A feed mixer, which is provided with a discharge port;

A paddle shaft, extended in the feed mixer, for stirring materials;

A material discharge control device, arranged on the material discharge port, is used to control the material discharge amount of the feed mixer.

Further, the discharge control device includes

The discharge screw shaft is rotatably arranged in the discharge port to push the material outward;

Preferably, the feed mixer is horizontally extended, and the discharge port is arranged on the lower side of the peripheral wall of the feed mixer.

Further, it also includes a discharge pipe, which is communicated with the discharge port, and the discharge screw shaft is passed through the discharge pipe;

Preferably, the discharge pipe is vertically arranged on the lower side wall of one end of the feed mixer.

Further, the discharge screw shaft has a screw shaft plate, which is spirally extended on the outer peripheral wall of the discharge screw shaft, and is used for screwing out the material in the feed mixer through the rotation of the screw shaft.

Further, the gap between the discharge pipe and the spiral rotating shaft piece on the outer periphery of the discharge spiral rotating shaft is 0mm≤δ≤40mm;

Preferably, the gap is 2mm≤δ≤10mm.

Further, a cavity is provided in the center of the discharge screw shaft, and the cavity can be used to pass a hot medium or a cold medium.

Further, the discharging control device further includes a control driving device, which is connected with the discharging screw shaft and is used to drive the discharging screw shaft to rotate forward and reverse.

The feed mixer is also provided with an opening, which is arranged on the peripheral wall on the opposite side of the discharge port. The other end of the discharge screw shaft passes through the opening. The other end of the screw shaft is connected in a drive.

Further, the feed mixer is also provided with a jacket, and the jacket has a gap between the feed mixers for passing the heat required for the evaporation of the moisture of the material inside the feed mixer. The cross section of the mixer and the jacket is W-shaped;

The feed mixer has an upper side wall with a feed port arranged at the front end of the feed mixer for adding materials.

Further, the inner wall roughness of the feed mixer is Ra≤0.8.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

(1) The utility model can adjust the discharge flow rate at any time according to production requirements by adding a discharge control device to the dryer, and can maintain the height of the material liquid level inside the feed mixer, ensuring indirect heat transfer. It has the advantages of high thermal efficiency, low energy consumption, controllable material level, and adjustable discharge volume.

(2) The utility model eliminates the overflow plate arranged at the front end of the discharge port, which ensures that the materials can be homogeneously mixed in the feed mixer, first in first out, and the materials inside the feed mixer can be mixed when discharging. All discharge, while increasing the evaporation area.

(3) By setting the discharge control device, the material liquid level can be ensured to maximize the heat utilization efficiency, and the material liquid level can be adjusted quickly, saving manpower and reducing the workload of workers, and improving the practicability of the dryer equipment.

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, as a part of the present utility model, are used to provide further understanding of the present utility model, and the schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, but do not constitute an improper limitation of the present utility model. Obviously, the drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort. In the attached image:

Fig. 1 is the overall structure diagram of a kind of paddle dryer of the present utility model;

In the figure: 1. Support frame; 2. Hollow shaft drive device; 3. Support bearing box; 4. Gear set; 5. Blade shaft; 6. Feed mixer; 61, Feed port; 62, Inspection port; 63, vacuum port; 64, observation window; 65, discharge port; 66, opening; 7, discharge pipe; 8, discharge screw shaft; 81, screw shaft plate; 9, control drive device.

It should be noted that these drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate The present invention is not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Removal connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in Figure 1, a paddle dryer according to the present invention includes a feed mixer 6, a paddle shaft 5 and a discharge control device.

The feed mixer 6 is provided with a discharge port 65 .

The paddle shaft 5 is extended in the feed mixer 6 for stirring materials.

The discharge control device is arranged on the discharge port 65 for controlling the discharge amount of the feed mixer 6 .

In the utility model, by adding a discharge control device to the dryer, the discharge control device can adjust the discharge flow rate at any time according to production requirements, and can maintain the height of the material liquid level in the feed mixer 6, thereby ensuring the indirect heat transfer strength and efficiency. The heat exchange effect of the blade shaft 5 is more practical, and has the advantages of high thermal efficiency, low energy consumption, controllable material level, and adjustable discharge volume.

Further, the discharge control device includes a discharge screw shaft 8 .

The discharge screw shaft 8 is rotatably disposed in the discharge port 65 for pushing materials outward.

Preferably, the feed mixer 6 is arranged to extend horizontally, and the outlet 65 is arranged on the lower side of the peripheral wall of the feed mixer 6 .

By arranging the discharge screw shaft 8 in the discharge port 65 , the material level in the feed mixer 6 is controlled while the pushing material is discharged, and the material in the feed mixer 6 is increased through the discharge screw shaft 8 . The stirring intensity is improved, the heat transfer efficiency and practicability are improved, and the work efficiency is improved.

Further, a discharge pipe 7 is also included, which is communicated with the discharge port 65 , and the discharge screw shaft 8 passes through the discharge pipe 7 .

Preferably, the discharge pipe 7 is vertically arranged on the lower side wall of one end of the feed mixer 6 .

In the present invention, the material discharge screw shaft 8 is rotatably arranged in the discharge pipe 7, and cooperates with the discharge pipe 7 to push the material out of the discharge pipe 7 through the discharge screw shaft 8. , it is convenient to control the discharge amount according to the needs, prevent the material from backflow, and at the same time, control the material level of the material in the feed mixer 6, realize first-in first-out, avoid the dead angle or dead material in the feed mixer 6, and improve the practicality. performance and efficiency, reducing user losses.

Further, the discharge screw shaft 8 has a helical shaft piece 81, which is spirally extended on the outer peripheral wall of the discharge screw shaft 8, and is used to rotate the feed mixer 6 by rotating the discharge screw shaft 8. The material is spirally pushed out.

As shown in FIG. 1 , the screw shaft piece 81 is arranged in the discharge pipe 7 , the screw shaft piece 81 is spirally extended on the outer peripheral wall of the discharge screw shaft 8 , and the screw shaft piece 81 is higher than The discharge pipe 7 and the discharge port 65 are at the connection of the feed mixer 6, which can better stir the materials in the feed mixer 6, save energy, and at the same time, it is convenient for discharging At the time of feeding, prevent the material part from entering the discharge pipe 7, and prevent the material in the discharge pipe 7 from being heated unevenly.

Further, the gap between the discharge pipe 7 and the spiral shaft piece 81 on the outer periphery of the discharge screw shaft 8 is 0mm≤δ≤40mm;

Preferably, the gap is 2mm≤δ≤10mm.

By setting the range of the gap between the discharge pipe 7 and the spiral shaft piece 81 on the outer periphery of the discharge screw shaft 8, the type of material can be limited to prevent improper use of the dryer and potential safety hazards.

The center of the discharge screw shaft 8 is provided with a cavity, and the cavity can be used to pass a hot medium or a cold medium.

The center of the discharge screw shaft 8 is a cavity structure. According to the actual needs, a hot medium or a cold medium can be passed into the cavity, which is convenient to meet the needs of temperature-sensitive materials, increase the application range of the dryer, and improve the use of the dryer. Variety of effects to meet different production needs.

Further, the discharging control device further includes a control driving device 9 , which is connected with the discharging screw shaft 8 and is used to drive the discharging screw shaft 8 to rotate forward and reverse.

The discharge screw shaft 8 is controlled by the control drive device 9 to realize forward and reverse rotation, so that the paddle shaft 5 and the discharge screw shaft 8 cooperate with each other to increase the evaporation area of the material and ensure that the material can be in the feed mixer 6. More uniform mixing, at the same time, to ensure that the heat utilization efficiency is maximized when the material is discharged, reducing energy consumption and improving work efficiency.

Further, the feed mixer 6 is also provided with an opening 66, which is arranged on the peripheral wall on the opposite side of the discharge port 65, and the other end of the discharge screw shaft 8 passes through the opening 66 , the control and drive device 9 is connected with the other end of the discharge screw shaft 8 in a driving manner.

By arranging an opening 66 at the position where the feed mixer 6 is opposite to the discharge port 65, the discharge screw shaft 8 passes through the opening 66 and is connected with the control drive device 9 to make the discharge screw 8 pass through the opening 66. The feed screw shaft 8 realizes the controllability of the material level of the material in the feed mixer 6 , which improves the work efficiency, and at the same time, facilitates the discharge of the material from the feed mixer 6 .

Specifically, the discharge pipe 7 is vertically arranged at the discharge port 65 , the discharge screw shaft 8 passes through the discharge pipe 7 , and the other end passes through the opening 66 and is The control drive device 9 is connected, and the control of the discharge screw shaft 8 is realized by the control drive device 9 .

During operation, the material is stirred in the feed mixer 6, and the discharge screw shaft 8 is rotated forward or reversed by controlling the drive device 9, so that the discharge screw shaft 8 is at the discharge port 65 and the other side. Stirring or discharging is carried out in the discharge pipe 7 to improve the heat transfer efficiency and evaporation area of the material in the feed mixer 6, so as to facilitate the adjustment of the material level in the feed mixer 6, increase the use effect, and at the same time , it is easy to adjust the discharge amount, realize the characteristics of controllable material level, and improve work efficiency.

Preferably, the discharge screw shaft 8 and the discharge pipe 7 are coaxially arranged.

During operation, control the drive device 9 to start, so that the discharge screw shaft 8 realizes the forward and reverse rotation, so as to meet the discharge and stirring functions. Control, improve work efficiency, and achieve precise control of output.

Further, the feed mixer 6 is also provided with a jacket, and the jacket has a gap between the feed mixer 6 for passing the heat required for the evaporation of the moisture of the material inside the feed mixer 6, so The section of the feed mixer 6 and the jacket is W-shaped;

The inside of the blade shaft 5 is a hollow structure, which can be directly connected to heating water, heating oil or heating steam to enhance the heat transfer effect.

The utility model can improve the drying effect of the equipment and reduce the energy consumption by arranging the jacket to cooperate with the blade shaft 5, or the change of the incoming medium can realize the change of the equipment function. For example, it can be used for the cooling of hot solid materials when the refrigerant fluid medium such as cold water and frozen brine is introduced.

The feed mixer 6 is provided with a feed port 61 , a vacuum port 63 , an observation window 64 and an inspection port 62 .

The feed port 61 is arranged on the upper side wall of the front end of the feed mixer 6 and communicates with the feed mixer 6 for adding materials.

The vacuum port 63 is arranged at the top of the feed mixer 6 to increase the sealing performance of the feed mixer 6 .

The vacuum port 63 is provided at the top of the feed mixer 6 to facilitate the heating efficiency of the material in the feed mixer 6, and the feed port 61 is provided for adding material. The observation window 64 and the inspection port 62 are convenient for observing the state of the materials in the feed mixer 6 .

Further, the inner wall roughness of the feed mixer 6 is Ra≤0.8.

Further, the paddle dryer also includes a hollow shaft drive device 2 , a support bearing box 3 and a gear set 4 .

The hollow shaft driving device 2 is connected to the front end of the blade shaft 5 and fixed on the support frame 1 for driving the blade shaft 5 .

The support bearing box 3 is located between the hollow shaft driving device 2 and the blade shaft 5 for supporting the blade shaft 5 .

The gear set 4 is connected to the paddle shaft 5 and is located between the support bearing box 3 and the paddle shaft 5 for storing gears.

The utility model provides power for the blade shaft 5 by setting the hollow shaft driving device 2, and at the same time, between the hollow shaft driving device 2 and the blade shaft 5, a support bearing box 3 and a gear set 4 are arranged to strengthen the alignment of the paddle. The supporting effect of the blade shaft 5 improves the safety of operation.

When the utility model is in use, start the equipment, add materials from the feeding port 61, and the paddle shaft 5 mixes and stirs the materials in the feeding mixer 6. As for the working efficiency of the dryer, the user can control the forward and reverse rotation of the discharge screw shaft 8 by controlling the drive device 9 to discharge or stir to improve the drying efficiency. The running state is observed in real time through the observation window 64 set on the feed mixer 6 to improve the use effect.

In the present invention, a control system can also be added to the dryer, a material level detection device is arranged inside the feed mixer 6, and the control system is a distributed control (DCS for short). The detection device cooperates to realize modular design. At the same time, the discharge control device is connected to the control system, and the configuration software is used to monitor according to different process application objects, so as to realize simple and convenient maintenance, and has an intelligent control method. On the basis of automatic control, it can also be adjusted at any time according to the needs of process production, which is convenient and fast.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those skilled in the present patent can make some changes or modifications to equivalent examples of equivalent changes by using the technical contents indicated above, within the scope of the technical solutions of the present invention, and the implementations in the above-mentioned embodiments can also be further combined. Or alternatively, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still belong to the scope of the present utility model solution.

Claims (13)

1. A paddle dryer characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the feeding mixer is provided with a discharging port;

the paddle shaft is arranged in the feeding mixer in an extending mode and used for stirring materials;

the discharge control device is arranged on the discharge port and used for controlling the discharge amount of the feed mixer;

the feeding mixer is also provided with a jacket, a gap is formed between the jacket and the feeding mixer and used for introducing heat required by evaporation of water in materials in the feeding mixer, and the cross sections of the feeding mixer and the jacket are W-shaped;

the paddle shaft is internally of a hollow structure and is directly communicated with heating water, heating oil or heating steam.

2. The paddle dryer of claim 1, wherein: the discharge control device comprises

The discharging spiral rotating shaft is rotatably arranged in the discharging port and used for pushing materials outwards.

3. The paddle dryer of claim 2, wherein: the feeding mixer extends horizontally, and the discharge port is arranged on the lower side of the peripheral wall of the feeding mixer.

4. A paddle dryer according to any one of claims 2 to 3, wherein: the spiral discharging device is characterized by further comprising a discharging pipeline communicated with the discharging port, and the spiral discharging rotating shaft penetrates through the discharging pipeline.

5. The paddle dryer of claim 4, wherein: the discharge pipeline is vertically arranged on the lower side wall of one end of the feeding mixer.

6. The paddle dryer of claim 4, wherein: ejection of compact spiral pivot has the helical shaft piece, and the spiral extends the setting and is in the periphery wall of ejection of compact spiral pivot is used for rotating through the spiral pivot will material spiral in the feeding blender is released.

7. The paddle dryer of claim 6, wherein: the gap between the discharging pipeline and the spiral rotating shaft sheet at the periphery of the discharging spiral rotating shaft is larger than or equal to 0mm and smaller than or equal to 40 mm.

8. The paddle dryer of claim 7, wherein: the gap is delta being more than or equal to 2mm and less than or equal to 10 mm.

9. The paddle dryer of claim 7, wherein: and a cavity is formed in the center of the discharging spiral rotating shaft and used for introducing a heat medium or a cold medium.

10. The paddle dryer of claim 2, wherein: the discharging control device also comprises a control driving device which is connected with the discharging spiral rotating shaft and used for driving the discharging spiral rotating shaft to rotate positively and negatively.

11. The paddle dryer of claim 10, wherein: the feeding mixer is also provided with an opening which is arranged on the circumferential wall of the other side opposite to the discharge port, the other end of the discharge spiral rotating shaft penetrates through the opening, and the control driving device is in transmission connection with the other end of the discharge spiral rotating shaft.

12. The paddle dryer of claim 1, wherein: the feeding mixer is provided with a feeding hole which is arranged on the upper side wall of the front end of the feeding mixer and used for adding materials.

13. The paddle dryer of claim 12, wherein: the roughness Ra of the inner wall of the feeding mixer is less than or equal to 0.8.

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