Discharging device and activated coke adsorption tower

Abstract

The present invention relates to a discharging device and an activated coke adsorption tower equipped with the discharging device. The discharging device includes an upper discharging device and a lower discharging device. The upper discharging device adopts a roller discharging device, which includes a discharging housing, a discharging roller, a first baffle plate and a second baffle plate. The first baffle plate and the second baffle plate and the inner wall of the discharging housing enclose a feeding cavity extending from the feeding port of the discharging housing to the side of the discharging roller. Among them, there is a discharging gap between the bottom end of the first baffle plate and the discharging roller, and the bottom end of the second baffle plate is adjacent to the discharging roller and is located below the bottom end of the first baffle plate. The present invention adopts a roller discharging device, which has little influence on the form of the material, can effectively reduce the material breakage rate during the discharging process, and can be well applied to the feeding operation of activated coke. By adopting a double-layer discharging device, the problem that the above-mentioned roller discharging device has poor sealing and causes the downward flow of flue gas can be well solved, and the normal and stable operation of the activated coke adsorption tower can be ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of activated coke production, and relates to a discharging device and an activated coke adsorption tower configured with the discharging device. Background Art

[0002] In the activated coke desulfurization and denitrification project of sintering flue gas, a single-valve core discharger is generally used at the bottom of the activated coke adsorption tower. During the operation of the single-valve core discharger, there is a situation where fine crushed coke enters the gap between the rotor impeller and the valve body, which will cause problems such as blockage of the discharger, increase in the gap between the rotor impeller and the valve body (strip-shaped grooves are formed in the valve body, and the rotor impeller is deformed and worn), and further lead to problems such as large particles of activated coke being squeezed and broken when transported through the single-valve core discharger, increase in the crushing rate of activated coke, and large coke loss in the material circulation activated coke. Summary of the Invention

[0003] The present invention relates to a discharging device and an activated coke adsorption tower configured with the discharging device, which can at least solve some defects of the prior art.

[0004] The present invention relates to a discharging device, including an upper-layer discharger and a lower-layer discharger connected to the discharging port of the upper-layer discharger;

[0005] The upper-layer discharger adopts a roller discharger, which includes a discharging housing, a discharging roller, a first baffle plate and a second baffle plate. The discharging roller is arranged in the discharging housing and is connected with a roller driving unit. The first baffle plate, the second baffle plate and the inner wall of the discharging housing enclose a feeding cavity extending from the feeding port of the discharging housing to the side of the discharging roller. Among them, there is a discharging gap between the bottom end of the first baffle plate and the discharging roller, and the bottom end of the second baffle plate is adjacent to the discharging roller and is located below the bottom end of the first baffle plate.

[0006] As one of the implementation manners, the gap between the second baffle plate and the discharging roller is adjustable.

[0007] As one of the implementation manners, the bottom end of the first baffle plate is located above the top end of the discharging roller.

[0008] As one of the implementation manners, the lower-layer discharger also adopts the roller discharger.

[0009] As one of the implementation manners, the roller driving unit includes a motor, a speed reducer and a transmission structure. The speed reducer is connected to the output shaft of the motor, and the transmission structure is respectively connected to the speed reducer and the discharging roller.

[0010] As one of the implementation manners, the upper-layer discharger and the lower-layer discharger are connected by a short connecting pipe.

[0011] As one of the implementation modes, the short pipe is provided with a sealing branch pipe for introducing sealing gas into the short pipe.

[0012] As one of the implementation modes, a material guide is provided in the short pipe.

[0013] As one of the implementation modes, the material guide is made of angle steel and the corner portion is the top portion thereof.

[0014] The present invention also relates to an activated coke adsorption tower, comprising a tower body, wherein the bottom of the tower body is provided with the above-mentioned unloading device.

[0015] The present invention has at least the following beneficial effects:

[0016] The unloading device provided by the present invention adopts a roller unloader, which has little effect on the shape of the material, can effectively reduce the material breakage rate during the unloading process, and can be well suitable for the unloading operation of activated coke; a double-layer unloader is adopted, and when the lower layer unloader is in the unloading operation, the upper layer unloader is full of materials, so it can play a sealing role, which can prevent the flue gas from flowing downward and prevent the flue gas from corroding the equipment. It can better solve the problem of the above-mentioned roller unloader being poorly sealed and causing the flue gas to flow downward, and ensure the normal and stable operation of the activated coke adsorption tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a discharging device provided in an embodiment of the present invention;

[0019] Figure 2 for Figure 1 Top view of the . DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1

[0022] like Figure 1 and Figure 2, an embodiment of the present invention provides a discharging device, including an upper discharging device 1 and a lower discharging device 3 connected to the discharging port of the upper discharging device 1; the upper discharging device 1 adopts a roller discharging device, and the roller discharging device includes a discharging housing 11, a discharging roller 12, a first baffle 13 and a second baffle 14. The discharging roller 12 is arranged in the discharging housing 11 and is connected with a roller driving unit. The first baffle 13, the second baffle 14 and the inner wall of the discharging housing 11 enclose a feeding cavity extending from the feeding port of the discharging housing 11 to the side of the discharging roller 12. Among them, there is a discharging gap between the bottom end of the first baffle 13 and the discharging roller 12, and the bottom end of the second baffle 14 is adjacent to the discharging roller 12 and is located below the bottom end of the first baffle 13.

[0023] The above-mentioned discharging roller 12 is a regular cylindrical roller body, and a roller seat can be correspondingly arranged on the discharging housing 11; the discharging roller 12 can be driven by the roller driving unit to rotate around its own axis. By rotating the discharging roller 12, the material can be driven to move, so as to realize the discharging operation of the material. Therefore, it can be understood that the rotating direction of the discharging roller 12 is from the second baffle 14 to the side of the first baffle 13, that is, when the discharging roller 12 rotates clockwise or counterclockwise, the first baffle 13 is located downstream of the second baffle 14. For example, in Figure 1 the illustrated embodiment, the discharging roller 12 rotates counterclockwise to discharge the material in the feeding cavity from the discharging gap between the first baffle 13 and the discharging roller 12. In one embodiment, as Figure 2 , the above-mentioned discharging roller 12 is driven by a motor 151, that is, the roller driving unit includes a motor 151, a speed reducer and a transmission structure 152. The speed reducer is connected to the output shaft of the motor 151, and the transmission structure 152 is respectively connected to the speed reducer and the discharging roller 12; among them, by adjusting the frequency of the speed reducer, the rotation speed of the discharging roller 12 can be controlled, so as to control the discharging speed of the discharging device; the above-mentioned transmission structure 152 can adopt a conventional transmission method. In this embodiment, a chain + gear transmission method is adopted, and the specific structure is omitted here.

[0024] The discharge spacing between the first baffle plate 13 and the discharge roller 12 is preferably adjustable to achieve a better effect of adjusting the discharge flow rate and better adapt to the discharge operation of materials of different specifications. Optionally, the first baffle plate 13 includes a fixed plate body and a movable plate body, the fixed plate body is fixed on the discharge housing 11, the movable plate body is installed on the fixed plate body and the installation position on the fixed plate body is adjustable, and the above-mentioned adjustable discharge spacing effect can be achieved by adjusting the installation position of the movable plate body on the fixed plate body to adjust the spacing between the movable plate body and the discharge roller 12; in one embodiment, an oblong groove is provided on the fixed plate body, and the movable plate body is fixed on the fixed plate body by adjusting bolts, and the purpose of adjusting the installation position of the movable plate body is achieved by adjusting the position of the adjusting bolts in the oblong groove. The bottom end of the first baffle plate 13 is preferably located above the top end of the discharge roller 12, so as to control the discharge speed through the discharge roller 12.

[0025] The second material baffle plate 14 is preferably as close to the roller surface of the discharge roller 12 as possible, and blocks the material as much as possible while avoiding interfering with the rotation of the discharge roller 12, so as to limit the material to be discharged from the discharge interval between the first material baffle plate 13 and the discharge roller 12. Preferably, the gap between the second material baffle plate 14 and the discharge roller 12 is 0.1-2mm; optionally, the second material baffle plate 14 also adopts the structure of the fixed plate body + movable plate body to adapt to the discharge rollers 12 with different roller diameters and the irregular roller surface of the discharge roller 12 caused by factors such as processing errors.

[0026] The unloading device provided in this embodiment adopts a roller unloader, which has little effect on the shape of the material, can effectively reduce the material breakage rate during the unloading process, and can be well applied to the unloading operation of activated coke; a double-layer unloader is adopted, and when the lower layer unloader 3 is in the unloading operation, the upper layer unloader 1 is filled with materials, so it can play a sealing role, which can prevent the flue gas from flowing downward and prevent the flue gas from corroding the equipment, and can better solve the problem of the above-mentioned roller unloader being poorly sealed and causing the flue gas to flow downward.

[0027] In the preferred solution, the lower discharger 3 also adopts a roller discharger, which can further reduce the material crushing rate during the discharge process. The upper and lower roller dischargers can be driven independently, which can better control the discharge speed and ensure the sealing effect; of course, the two roller dischargers can also share a roller drive unit, and the transmission structure 152 is respectively connected to the two discharge rollers 12. Of course, other dischargers besides the single valve core discharger, such as the plow discharger, etc.

[0028] Further optimize the above unloading device, such as Figure 1 The upper discharger 1 and the lower discharger 3 are connected via a short pipe 2, and the short pipe 2 and the upper discharger 1 and the lower discharger 3 can be flange connection structures respectively.Figure 1 The short pipe 2 is provided with a sealing branch pipe 31 for introducing a sealing gas into the short pipe 2. The introduced sealing gas is preferably an inert gas, such as nitrogen or argon. By introducing the sealing gas into the short pipe 2, the flue gas can be further prevented from flowing downward, and the air can be isolated from flowing upward, fully ensuring the safe operation of the main equipment (such as the activated coke adsorption tower). In order to ensure the sealing effect, the above-mentioned sealing branch pipes 31 are preferably provided in plurality and are evenly spaced along the circumference of the short pipe 2.

[0029] Furthermore, if Figure 1 The short pipe 2 is provided with a material guide 32, which guides the material downward on the one hand, and plays a certain role in buffering the material downward on the other hand, so as to ensure that the short pipe 2 is filled with material. Figure 1 The guide 32 is made of angle steel and the corner is its top, so the guide effect is better.

[0030] Embodiment 2

[0031] An embodiment of the present invention provides an activated coke adsorption tower, including a tower body, wherein the bottom of the tower body is provided with a unloading device provided in the above-mentioned embodiment 1. The specific structure of the unloading device is not described here. By configuring the unloading device, the normal and stable unloading operation of the activated coke can be ensured, and the coke loss of the activated coke can be reduced, thereby ensuring the normal material circulation of the activated coke adsorption tower.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A discharging device, characterized in that: it includes an upper discharging device and a lower discharging device connected to the discharging opening of the upper discharging device; the upper discharging device adopts a roller discharging device, the roller discharging device includes a discharging housing, a discharging roller, a first baffle plate and a second baffle plate, the discharging roller is arranged in the discharging housing and is connected with a roller driving unit, the first baffle plate, the second baffle plate and the inner wall of the discharging housing enclose a feeding cavity extending from the feeding opening of the discharging housing to the side of the discharging roller, wherein, there is a discharging gap between the bottom end of the first baffle plate and the discharging roller, the bottom end of the second baffle plate is adjacent to the discharging roller and is located below the bottom end of the first baffle plate; the lower discharging device also adopts the roller discharging device; the upper discharging device and the lower discharging device are connected by a short pipe; a sealing branch pipe for introducing sealing gas into the short pipe is arranged on the short pipe; a material guide is arranged in the short pipe, and the material guide is used for guiding the downward movement of materials and playing a certain role in buffering the downward movement of materials to ensure that the short pipe is filled with materials.

2. The discharging device according to claim 1, characterized in that: the gap between the second baffle plate and the discharging roller is adjustable.

3. The discharging device according to claim 1, characterized in that: the bottom end of the first baffle plate is located above the top end of the discharging roller.

4. The discharging device according to claim 1, characterized in that: the roller driving unit includes a motor, a speed reducer and a transmission structure, the speed reducer is connected to the output shaft of the motor, and the transmission structure is respectively connected to the speed reducer and the discharging roller.

5. The discharging device according to claim 1, characterized in that: the material guide adopts an angle steel and its corner is the top.

6. An activated coke adsorption tower, including a tower body, characterized in that: the discharging device according to any one of claims 1 to 5 is arranged at the bottom of the tower body.

Images