阅读说明：本技术 具有夹套的振动输送机和催化剂颗粒的冷却方法 (Jacketed vibratory conveyor and method for cooling catalyst particles ) 是由 马坚 陆桂东 汤云雷 陈世华 裘潜麟 闫博文 于 2019-10-23 设计创作，主要内容包括：本发明涉及催化剂制备领域,公开了一种具有夹套的振动输送机和催化剂颗粒的冷却方法。本发明的具有夹套的振动输送机,所述振动输送机为振动螺旋输送机或者振动槽式输送机,所述振动输送机包括底座、振动机构、支撑弹簧(4)以及输送槽或螺旋输送盘；其中,所述振动机构用于驱动物料的输送；所述输送槽或所述螺旋输送盘用于输送物料,其一端设置有物料入口(1),另一端设置有物料出口(2)；在所述输送槽或所述螺旋输送盘的底部的至少部分上设置有夹套(5),所述夹套(5)用于对振动输送机输送的物料进行冷却。利用该具有夹套的振动输送机可以实现物料的输送和冷却,并且操作简便、无物料损失。(The invention relates to the field of catalyst preparation, and discloses a vibration conveyor with a jacket and a cooling method of catalyst particles. The invention relates to a vibration conveyor with a jacket, which is a vibration screw conveyor or a vibration groove type conveyor, and comprises a base, a vibration mechanism, a supporting spring (4) and a conveying groove or a screw conveying disc; the vibration mechanism is used for driving the conveying of materials; the conveying groove or the spiral conveying disc is used for conveying materials, one end of the conveying groove or the spiral conveying disc is provided with a material inlet (1), and the other end of the conveying groove or the spiral conveying disc is provided with a material outlet (2); a jacket (5) is arranged on at least part of the bottom of the conveying groove or the spiral conveying disc, and the jacket (5) is used for cooling the materials conveyed by the vibrating conveyor. The vibration conveyor with the jacket can realize the conveying and cooling of materials, and has simple and convenient operation and no material loss.)

1. The vibrating conveyor with the jacket is characterized by being a vibrating screw conveyor or a vibrating groove type conveyor, and comprising a base, a vibrating mechanism, a supporting spring (4) and a conveying groove or a conveying spiral disc;

the vibration mechanism is used for driving the conveying of materials;

the conveying groove or the spiral conveying disc is used for conveying materials, the conveying groove or the spiral conveying disc is arranged on the base through a supporting spring (4), one end of the conveying groove or the spiral conveying disc is provided with a material inlet (1), and the other end of the conveying groove or the spiral conveying disc is provided with a material outlet (2);

a jacket (5) is arranged on at least part of the bottom of the conveying groove or the spiral conveying disc, and the jacket (5) is used for cooling the materials conveyed by the vibrating conveyor.

2. The conveyor according to claim 1, wherein the jacket (5) is configured to circulate a cooling medium.

3. The vibratory conveyor of claim 1, wherein the vibratory conveyor is a vibratory screw conveyor.

4. The vibratory conveyor of claim 1, wherein the vibratory conveyor is a vibratory trough conveyor;

preferably, the vibrating conveyor further comprises a cover body, the cover body is arranged above the conveying groove, and the material inlet (1) and the material outlet (2) are arranged at two ends of the cover body;

preferably, a jacket (5) is provided on at least a portion of the bottom of the trough and the lid.

5. The vibratory conveyor of any one of claims 1-4, wherein the vibratory conveyor is for horizontal or vertical conveyance of material;

preferably, the vibration mechanism comprises a polarization motor (3).

6. A vibrating conveyor according to any one of claims 1-4, wherein the material inlet (1) is adapted to introduce material and the material outlet (2) is adapted to introduce material into a packaging unit.

7. A method for cooling catalyst particles, characterized in that the method comprises conveying the catalyst particles by a vibrating conveyor according to any one of claims 1 to 6, and cooling the catalyst particles by passing a cooling medium through a jacket (5).

8. The method of cooling catalyst particles according to claim 7, wherein the coolant is water and/or a refrigerant liquid.

9. A method for cooling catalyst particles according to claim 7, wherein the temperature of the catalyst particles conducted from the feed outlet (2) is 30 ℃ or lower.

10. The method for cooling catalyst particles according to claim 7, wherein the catalyst particles are not lost during transportation.

Technical Field

The invention relates to the field of catalyst preparation, in particular to a vibration conveyor with a jacket and a cooling method of catalyst particles.

Background

In the catalyst production process, the calcination step is often used as the last step, by calcining at high temperature to thermally decompose the material and remove water and volatile components to form a stable structure. And after roasting, transferring to a finished product packaging process. Because the packaging bag is generally made of plastic materials and can resist the temperature of about 45 ℃, and the temperature of the product obtained by the roasting furnace is generally more than 200 ℃, the packaging bag needs to be cooled to avoid scalding.

In the past, a standing natural cooling method is generally adopted, specifically, a galvanized barrel is used for receiving materials at the outlet of a furnace, the materials are placed overnight for cooling after being filled, and then the materials are packaged the next day. The method has the problems of long field operation time, low efficiency, high strength, dust emission, material scattering and the like.

CN201858917U discloses a cooling method of spraying water on the outer surface of a roller for high-temperature quartz sand granules. The roller is placed in an inclined mode according to a certain inclination angle, high-temperature materials enter from the higher end of the roller and are discharged from the lower end of the roller along with continuous rotation of the roller. Spraying cold water on the outer wall of the roller to cool the materials. The device structure is comparatively complicated, needs sealed connection, and the material has certain wearing and tearing in the tumbling of cylinder.

CN202002520U discloses a high temperature granule material cooler, its process is that the material rolls in the cylinder and throws, carries out the heat exchange with the condenser tube that inside set up, realizes cooling. The materials are abraded to a certain extent due to violent rolling in the process.

For most of the catalyst products that are not attrition resistant and expensive, there is a need to develop a loss-free high temperature particle cooling process.

Disclosure of Invention

The invention aims to solve the problem of loss in the cooling process of catalyst products in the prior art, and provides a vibrating conveyor with a jacket and a cooling method of catalyst particles.

In order to achieve the above object, an aspect of the present invention provides a jacket-equipped vibrating conveyor, which is a vibrating screw conveyor or a vibrating trough conveyor, the vibrating conveyor including a base, a vibrating mechanism, a support spring, and a conveying trough or a conveying pan; the vibration mechanism is used for driving the conveying of materials; the conveying groove or the spiral conveying disc is used for conveying materials, the conveying groove or the spiral conveying disc is arranged on the base through a supporting spring, one end of the conveying groove or the spiral conveying disc is provided with a material inlet, and the other end of the conveying groove or the spiral conveying disc is provided with a material outlet; and a jacket is arranged on at least part of the bottom of the conveying groove or the spiral conveying disc and used for cooling the material conveyed by the vibrating conveyor.

Preferably, the jacket is configured to flow a cooling medium.

Preferably, the vibrating conveyor is a vibrating screw conveyor.

Preferably, the vibrating conveyor is a vibrating trough conveyor.

More preferably, the vibrating conveyor further comprises a cover body, the cover body is arranged above the conveying groove, and the material inlet and the material outlet are arranged at two ends of the cover body.

More preferably, a jacket is provided on at least a part of the bottom of the conveying tank and the lid body.

Preferably, the vibrating conveyor is used for horizontal conveying or vertical conveying of materials.

Preferably, the vibration mechanism comprises a polarizing motor.

Preferably, the material inlet is used for introducing material, and the material outlet is used for introducing material into the packaging device.

A second aspect of the present invention provides a method for cooling catalyst particles by passing a refrigerant through a jacket while conveying the catalyst particles by the vibrating conveyor according to the first aspect of the present invention.

Preferably, the refrigerant is water and/or refrigerating fluid.

Preferably, the temperature of the catalyst particles conducted out of the feed outlet is below 30 ℃.

Preferably, the catalyst particles are not lost during transport.

Through the technical scheme, the vibration conveyor with the jacket is simple, practicable, convenient and flexible in structure and operation, can be vertically conveyed and lifted to a storage bin of a packaging system, can also be horizontally conveyed to a designated position, overcomes the defect that the roller can only be horizontally conveyed after being cooled, and can be conveyed to a hopper without other lifting equipment. In addition, the vibration conveying adopts a micro-throwing principle, namely a certain exciting force is generated by a polarization motor, so that the materials overcome the self gravity and advance in a small parabola shape towards a preset direction. The conveying process is mild, the materials are not extruded, no loss is caused, and the abrasion to the materials in the roller cooling process is eliminated. The whole conveying and cooling process is closed, the operation is automatic and continuous, and the operation environment is clean and tidy.

Drawings

FIG. 1 is a schematic structural view of a jacketed vibrating screw conveyor of the present invention;

fig. 2 is a schematic view of the structure of a vibrating jacketed conveyor of the present invention.

Description of the reference numerals

1. Material inlet 2 and material outlet

3. Polarization motor 4, supporting spring

5. Jacket 6, weir plate

7. Air vent

Detailed Description

The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

A first aspect of the present invention provides a jacket-equipped vibrating conveyor, as shown in fig. 1-2, which is a vibrating screw conveyor or a vibrating trough conveyor, the vibrating conveyor including a base, a vibrating mechanism, a support spring, and a conveying trough or a screw conveying pan; the vibration mechanism is used for driving the conveying of materials; the conveying groove or the spiral conveying disc is used for conveying materials, the conveying groove or the spiral conveying disc is arranged on the base through a supporting spring 4, one end of the conveying groove or the spiral conveying disc is provided with a material inlet 1, and the other end of the conveying groove or the spiral conveying disc is provided with a material outlet 2; a jacket 5 is arranged on at least part of the bottom of the conveying groove or the spiral conveying disc, and the jacket 5 is used for cooling the materials conveyed by the vibrating conveyor.

In the invention, the material in conveying is cooled by arranging the jacket 5, so that the conveying and cooling processes of the material can be completed simultaneously, and no material loss is generated.

In the present invention, the material inlet 1 is used for introducing material, and the material outlet 2 is used for introducing material into the packaging device. The material inlet 1 and the material outlet 2 are respectively arranged corresponding to two ends of the conveying groove or the spiral conveying disc. By using the vibrating conveyor with the jacket 5, the high-temperature materials can be conveyed and cooled, and the aim of directly packaging the roasted materials is fulfilled.

In the present invention, the vibrating conveyor may be used for horizontal or vertical conveyance of materials. In the case of horizontal conveyance, a vibrating trough conveyor is preferably used; in the case of vertical conveyance, a vibrating screw conveyor is preferably used.

In the vibrating screw conveyor, as shown in fig. 1, a screw conveying pan of the vibrating screw conveyor may be provided in a slant shape that rises spirally, and a vibrating mechanism may be provided on a top portion of the screw conveying pan. The length of the spiral conveyor tray can be determined according to the height to be lifted, and is described as the number of turns of the spiral. In order to facilitate the cooperation with the packaging unit, a vibrating screw conveyor is preferably used.

In the vibrating trough conveyor, as shown in fig. 2, the vibrating trough conveyor further includes a cover body disposed above the conveying trough, and a material inlet 1 and a material outlet 2 are disposed at both ends of the cover body. In order to provide a stronger cooling performance, it is preferable that a jacket 5 is provided on at least a part of the bottom of the conveying trough and the lid body. That is, the jacket 5 is provided in correspondence with the cover body, and the cooling efficiency is improved by increasing the cooling area.

Preferably, in order to control the residence time of the material on the vibrating trough conveyor, a weir plate 6, preferably an adjustable weir plate, may also be provided on the end of the trough near the material outlet 2. By providing the weir plates 6, the thickness of the material bed and the residence time in the trough can be controlled as desired.

Preferably, the top of the cover body is provided with a vent hole 7, and the vent hole 7 is used for discharging moisture inside the cover body due to spraying. The air vent 7 may be provided, for example, at one end of the material outlet 2 and/or at one end of the material inlet 1 on the cover, and may be used in conjunction with an air pump to vent moisture.

In the present invention, a jacket 5 is provided at least in part on the bottom of the conveying trough or the spiral conveying pan, thereby cooling the material conveyed by the vibrating conveyor. Preferably, a jacket 5 is integrally provided at the bottom of the conveying trough or the spiral conveying pan. In the case of using a vibrating screw conveyor, the jacket 5 may be provided at the bottom of the screw conveyor pan, for example as a bottom sandwich. When a vibrating trough conveyor is used, the jacket 5 is disposed in close contact with the bottom of the conveying trough.

In the present invention, the jacket 5 is used for flowing a cooling medium. Through the heat exchange between the refrigerant in the jacket 5 and the conveyed materials, the materials can be rapidly cooled. The coolant used may be any cooling medium, such as cooling water and/or coolant, and the temperature of the coolant may be 25 ℃ or less, preferably 20 ℃ or less, for example-5 to 20 ℃.

In the present invention, the vibration mechanism is not particularly limited as long as it can provide the vibration required for the material conveyance, and any vibration mechanism conventionally used for a vibrating screw conveyor or a vibrating trough conveyor may be used. According to one embodiment of the invention, the vibration mechanism comprises a polarization motor 3. The polarization motor 3 may be disposed below the conveying trough or above the spiral conveying tray. And the vibration output end of the polarization motor 3 is connected with the conveying groove or the spiral conveying disc. The polarization motor 3 forms a vibration eddy current, so that the lossless conveying of the materials is realized.

According to another embodiment of the invention, the vibration mechanism may comprise, for example, a connecting rod, a polarization motor 3 and a transmission rod. The conveying groove or the spiral conveying disc is movably connected to the base through the connecting rod, and the vibration output end of the polarization motor 3 drives the conveying groove or the spiral conveying disc to vibrate through the transmission rod. Further, it is preferable that a plurality of connecting rods are provided on both sides of the conveying trough or the spiral conveying pan, and the plurality of connecting rods are parallel to each other.

In the invention, the conditions of the conveying capacity, the conveying direction and the like of the vibrating conveyor can be specifically set according to the treatment capacity and the process requirement.

The second aspect of the present invention is a method for cooling catalyst particles by passing a refrigerant through the jacket 5 while conveying the catalyst particles by the above-mentioned vibrating conveyor of the present invention.

The coolant used in the present invention may be any cooling medium, such as cooling water and/or coolant, and the temperature of the coolant may be 25 ℃ or lower, preferably 20 ℃ or lower, for example-5 to 20 ℃.

In the present invention, the cooled catalyst particles are not particularly limited, and can be used for transporting arbitrary catalyst particles, and are preferably catalyst particles subjected to high-temperature treatment such as calcination, and may be, for example, catalyst-supporting carrier particles. Specifically, the catalyst particles may have a particle diameter of 5 to 200. mu.m, a water content of 2 wt% or less, and a bulk density of 1.17 to 1.27 kg/l. The temperature of the catalyst particles prior to delivery may be 200 ℃ or higher, for example 200 ℃ or 500 ℃.

By using the vibrating conveyor of the invention to convey and cool the catalyst particles, the temperature of the catalyst particles led out from the material outlet 2 can reach below 30 ℃, and the requirement of direct packaging is met. Therefore, the vibrating conveyor can be directly matched with a packaging system for use, plastic and other materials for packaging cannot be damaged, and the catalyst particles are not lost in the whole conveying process.

In addition, the treatment capacity of the vibrating conveyor can reach more than 400Kg/h, and can be specifically adjusted according to the whole process flow.

The present invention will be described in detail below by way of examples.

Example 1

The conveying of the catalyst alumina carrier particles is carried out by using a vibrating conveyor with a jacket, the discharging temperature of the calcined catalyst alumina carrier particles is 221 ℃, and the discharging amount is 400 Kg/h. The average particle diameter of the alumina carrier particles of the catalyst was 100 μm, the water content was 2% by weight, and the bulk density was 1.2 kg/l.

The vibrating conveyor is a vibrating screw conveyor, as shown in fig. 1, the vibrating conveyor comprises a base, a vibrating mechanism, a supporting spring 4 and a screw 38-circumferenceA spiral conveying disc. The vibration mechanism is arranged at the top of the spiral conveying disc and used for driving conveying of materials; the spiral conveying disc is arranged on the base through a supporting spring 4 and is used for conveying materials; the outer diameter of the spiral conveying disc isTwo ends of the spiral conveying disc are provided with a material inlet 1 and a material outlet 2, and the effective lifting height from the material inlet 1 to the material outlet 2 is 5600 mm.

A jacket 5 is arranged at the bottom of 18 circles of the side of the spiral conveying disc close to the material inlet 1, and the heat exchange area is 4.6m²The jacket 5 is used for cooling the materials conveyed by the vibrating conveyor, and cooling water with the temperature of 20 ℃ is introduced into the jacket 5.

The catalyst alumina carrier particles are vertically lifted by 5600mm by a vibrating screw conveyor, and simultaneously the temperature is reduced to 27 ℃, and the catalyst alumina carrier particles are sent into a hopper of a packaging system for automatic packaging. No loss is generated in the whole conveying process.

Example 2

The catalyst alumina carrier particles were conveyed by using the jacketed vibratory conveyor of example 1, except that the jacket 5 was provided at the bottom of 22 weeks of the spiral conveying pan on the side close to the material inlet 1, and the heat exchange area was 5.6m². The catalyst alumina carrier particles are vertically lifted by 5600mm by a vibrating screw conveyor, and simultaneously the temperature is reduced to 25 ℃, and the catalyst alumina carrier particles are sent into a hopper of a packaging system for automatic packaging. No loss is generated in the whole conveying process.

Example 3

The transport of the catalyst alumina support particles was carried out using the jacketed vibratory conveyor of example 1, except that the catalyst alumina support particles were calcined at a discharge temperature of 295 ℃. The catalyst alumina carrier particles are vertically lifted by 5600mm by a vibrating screw conveyor, and simultaneously the temperature is reduced to 29 ℃, and the catalyst alumina carrier particles are sent into a hopper of a packaging system for automatic packaging. No loss is generated in the whole conveying process.

The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.