CN221772236U - A catalyst fine powder fluidized recovery device - Google Patents

Abstract

The utility model discloses a catalyst fine powder fluidization recovery device, which comprises: a settling tube, a catalyst storage tank and a dust remover; the side wall of the sedimentation pipe is provided with a feed inlet, the top is provided with an exhaust port, and the bottom is provided with a discharge port; the bottom of the sedimentation pipe is also provided with an air inlet; the catalyst storage tank is communicated with a discharge port of the sedimentation pipe; the dust remover is communicated with the exhaust port of the sedimentation pipe. The recovery device of the utility model separates out the qualified catalyst in the catalyst fine powder, and recycles the qualified catalyst, thereby reducing the loss of the qualified catalyst.

Description

Catalyst fine powder fluidization recovery device

Technical Field

The utility model relates to the technical field of catalyst recovery, in particular to a catalyst fine powder fluidization recovery device.

Background

The Fischer-Tropsch synthesis iron-based catalyst is mainly prepared through the processes of precipitation reaction, impregnation reaction, spray drying, roasting forming, screening and the like. The catalyst formed by spray drying has the granularity ranging from 1 to 300 mu m and shows normal distribution. The slurry bed reactor for preparing the coal oil has special requirements on the granularity of the catalyst, the catalyst must be controlled between 44 and 250 mu m, the catalyst is uniformly distributed in the slurry bed reactor, the reaction activity is good, and the sintering and carbon deposit effects can be effectively reduced.

During the production process, the fines in the catalyst are separated off by means of a fluidized bed. But the qualified catalyst content of the classified fine powder with the particle size of more than 44 mu m still accounts for about 30-40%, which causes the loss of qualified catalyst products.

Therefore, a catalyst fine powder fluidization recovery device capable of recovering qualified catalyst in fine powder and reducing loss of qualified catalyst is needed to be solved by those skilled in the art.

Disclosure of utility model

In view of this, the present utility model provides a catalyst fines fluidization recovery apparatus that can recover acceptable catalyst in fines and reduce loss of acceptable catalyst.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

A catalyst fines fluidization recovery apparatus comprising:

The sedimentation pipe is provided with a feeding hole on the side wall, an exhaust hole on the top and a discharge hole on the bottom; the bottom of the sedimentation pipe is also provided with an air inlet;

The catalyst storage tank is communicated with the discharge port of the sedimentation pipe;

and the dust remover is communicated with the exhaust port of the sedimentation pipe.

After the catalyst fine powder enters the sedimentation tube, the catalyst fine powder with small particle size can move upwards and be blown out of the sedimentation tube under the action of airflow with certain speed, and the qualified catalyst is settled into the catalyst storage tank, so that the recovery of the qualified catalyst is realized, and the loss of the qualified catalyst can be reduced.

Preferably, a screw feeder is connected to the feed inlet of the settling tube. The screw feeder can make the material uniformly enter the sedimentation pipe.

Preferably, a gas buffer tank is connected to the gas inlet of the sedimentation pipe. The gas buffer tank can be used for introducing gas into the sedimentation pipe, and bringing the catalyst fine powder with small particle size out of the sedimentation pipe to realize separation from qualified catalyst.

Preferably, a flow regulating valve is arranged on a pipeline connected with the sedimentation pipe of the gas buffer tank. The flow regulating valve can regulate the flow of gas introduced into the settling tube.

Preferably, the gas buffer tank is connected with a voltage stabilizer. The pressure stabilizer can stabilize the pressure in the gas buffer tank.

Preferably, the top of the dust remover is provided with a gas discharge port, and the bottom of the dust remover is provided with a fine powder discharge port. The dust remover can separate the catalyst fine powder with small particle size from air, so that the solid content in gas can be reduced, and the environmental pollution is reduced.

Compared with the prior art, the utility model discloses a catalyst fine powder fluidization recovery device, which has the beneficial effects that:

(1) According to the utility model, by utilizing different sedimentation speeds of different particle sizes, small-particle-size catalyst particles are blown out of a sedimentation pipe at a certain air speed, qualified catalyst is deposited at the lower part of the sedimentation pipe and is collected by a catalyst storage tank, the small-particle-size catalyst and the qualified catalyst are separated, the qualified catalyst is recovered, and the loss of the qualified catalyst is reduced;

(2) The dust remover separates the gas from the small-particle-size catalyst, and collects the small-particle-size catalyst, so that the solid content in the exhaust gas is reduced, and the environmental pollution is reduced.

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 required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a recovery device provided by the utility model.

Wherein, in the drawing,

1-A sedimentation tube;

11-a feed inlet; 12-exhaust port; 13, a discharge hole; 14-air inlet;

2-a catalyst reservoir;

3-dust remover;

31-a discharge port; 32-a fine powder discharge port;

4-screw feeder; 5-a gas buffer tank; 6-a flow regulating valve; 7-voltage stabilizer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model discloses a catalyst fine powder fluidization recovery device, which comprises:

The sedimentation pipe 1, the side wall of the sedimentation pipe 1 is provided with a feed inlet 11, the top is provided with an exhaust port 12, and the bottom is provided with a discharge port 13; the bottom of the sedimentation tube 1 is also provided with an air inlet 14;

A catalyst storage tank 2, wherein the catalyst storage tank 2 is communicated with a discharge port 13 of the sedimentation pipe 1;

And the dust remover 3 is communicated with the exhaust port 12 of the sedimentation pipe 1. The dust remover 3 can settle the catalyst fine powder with small particle size in the gas, so as to avoid the influence on the air caused by solid particles being mixed when the gas is discharged.

In order to further optimize the above technical solution, a screw feeder 4 is connected to the feed opening 11 of the settling tube 1.

In order to further optimise the above-mentioned solution, a gas buffer tank 5 is connected to the inlet 14 of the settling tube 1.

In order to further optimize the technical scheme, a flow regulating valve 6 is arranged on a pipeline of the gas buffer tank 5 connected with the sedimentation pipe 1.

In order to further optimize the above technical solution, the gas buffer tank 5 is connected with a pressure stabilizer 7. The pressure in the gas buffer tank 5 can be stabilized at 0.4-0.6MPa.

In order to further optimize the technical scheme, the top of the dust remover 3 is provided with a gas discharge port 31, and the bottom is provided with a fine powder discharge port 32. The dust remover 3 separates the small-particle-size catalyst fine powder from air, so that the small-particle-size catalyst fine powder can be recovered, the solid content in the air can be reduced, and the pollution to the environment is reduced.

Working principle:

The catalyst fine powder can be conveyed into the sedimentation tube 1 through the screw feeder 4, meanwhile, the gas buffer tank 5 can introduce gas into the sedimentation tube 1, the separated fine powder is suspended on the upper layer of the qualified catalyst with particle diameter, the catalyst particles smaller than 44 mu m are carried out by means of gas velocity, the qualified catalyst is deposited on the lower part of the sedimentation tube 1 and is collected by the catalyst storage tank 2, and the mixture of the fine powder and air is recycled and concentrated through the dust remover 3.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A catalyst fine powder fluidized recovery device, characterized in that it comprises: A settling pipe (1), wherein a side wall of the settling pipe (1) is provided with a feed port (11), a top is provided with an exhaust port (12), and a bottom is provided with a discharge port (13); and an air inlet (14) is also provided at the bottom of the settling pipe (1); A catalyst storage tank (2), the catalyst storage tank (2) being in communication with a discharge port (13) of the settling pipe (1); A dust collector (3), wherein the dust collector (3) is connected to the exhaust port (12) of the settling pipe (1). 2. A catalyst fine powder fluidized recovery device according to claim 1, characterized in that a screw feeder (4) is connected to the feed port (11) of the settling pipe (1). 3. A catalyst fine powder fluidized recovery device according to claim 1, characterized in that a gas buffer tank (5) is connected to the air inlet (14) of the settling pipe (1). 4. A catalyst fine powder fluidized recovery device according to claim 3, characterized in that a flow regulating valve (6) is provided on the pipeline connecting the gas buffer tank (5) and the settling pipe (1). 5. A catalyst fine powder fluidized recovery device according to claim 4, characterized in that the gas buffer tank (5) is connected to a voltage stabilizer (7). 6. A catalyst fine powder fluidized recovery device according to claim 1, characterized in that a gas discharge port (31) is provided at the top of the dust collector (3), and a fine powder discharge port (32) is provided at the bottom.