Material receiving device for discharging of desulfurization and denitrification device

Abstract

The utility model discloses a material receiving device for desulfurization and denitrification device unloading, which comprises a plurality of conical hoppers arranged at a back plate of a roller type unloader, the conical hoppers are all positioned below an unloading roller and are arranged side by side, and each conical hopper consists of a conical hopper transverse plate, a first conical hopper inclined plate, a second conical hopper inclined plate and a channel steel support which are connected in sequence, one end of the conical hopper transverse plate is fixedly connected to the structure of the roller type discharger opposite to the rotation direction of the discharging roller, the other end of the conical hopper transverse plate extends horizontally and is connected with one end of the first conical hopper inclined plate, and the other end of the first conical hopper inclined plate extends downwards in the direction forming an angle of 5-10 degrees with the vertical direction and is connected with one end of the second conical hopper inclined plate. The other end of the second conical hopper inclined plate extends upwards in the direction forming an angle of 15-20 degrees with the horizontal direction and is connected with one end of the channel steel support, and the other end of the channel steel support is fixedly connected to the structure of the roller type discharger in front of the rotating direction of the discharging roller. The structure is simple, safe and reliable, the problem of back plate leakage can be conveniently and quickly solved, the maintenance time is saved, and the service life of the discharge port is prolonged.

Description

Technical Field

[0001] The utility model relates to a material receiving device used for unloading of a desulfurization and denitration device. Background Art

[0002] In existing sintering processes, two sintering machines are often used, equipped with two activated carbon dry flue gas treatment systems for desulfurization and denitrification, sharing a common acid production system and ammonia injection system. The sintering flue gas is pumped from the sintering main exhaust fan to a booster fan, where it is pressurized and then enters the desulfurization and denitrification towers before being discharged through the chimney. This flue gas treatment technology utilizes activated carbon as a catalyst and adsorbent, removing SO₂, NO₂, and dust from the sintering flue gas through physical and chemical adsorption. The activated carbon catalyst is added to the top of the purification reactor and moves downward under gravity and a bottom discharge device. It absorbs pollutants such as SO₂, NO₂, and dust from the flue gas and is then transported to the regeneration reactor via the No. 2 chain bucket conveyor for regeneration. The regenerated activated carbon is then returned to the purification reactor via the No. 1 chain bucket conveyor. The acid gas desorbed during regeneration is then transported to the acid production unit to produce concentrated sulfuric acid. The roller unloaders at the bottom of the purification tower and the regeneration tower play a vital role in the circulation of the activated carbon catalyst. Each roller unloader is mainly composed of a 9280mm long roller, a motor, a reducer, a motor fan and three unloading roller tugs. Each desulfurization tower has six roller unloaders, the denitrification tower has four roller unloaders, and the regeneration tower has two roller unloaders. Figure 1 This is a schematic diagram of a denitrification tower roller unloader.

[0003] The position of the roller discharge port is prone to deformation due to long-term heating, constant temperature of 145℃, cooling and pressure changes after the booster fan, such as Figure 2 As shown in the figure, at the back plate and baffle plate, most of the time, the baffle plate in the direction of the discharge roller is prone to deformation, which will cause uncontrolled discharge of activated carbon catalyst, affecting the results of flue gas treatment. In addition, the device itself cannot withstand the circulation volume of activated carbon catalyst, and can only be adjusted by adjusting the baffle plate at the discharge port during shutdown. Sometimes, the back plate is deformed. As the device operates, the activated carbon powder inside increases. Since each tower contains approximately 620 tons of activated carbon, it is almost impossible to release all the activated carbon in the tower for maintenance. In this way, the continuous leakage of activated carbon catalyst from the back plate will seriously affect the circulation volume of activated carbon catalyst, causing the chain bucket conveyor to be under tremendous pressure. It may even be unable to withstand the pressure, directly leading to the shutdown of the desulfurization and denitrification project, and then the shutdown of the sintering machine. Utility Model Content

[0004] The purpose of the utility model is to provide a material receiving device for unloading a desulfurization and denitrification device. The material receiving device for unloading a desulfurization and denitrification device has a simple structure, is safe and reliable, can conveniently and quickly solve the problem of back plate leakage, save maintenance time, and extend the service life of the discharge port.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a material receiving device for unloading of a desulfurization and denitrification device, which comprises a plurality of cone buckets arranged at the back plate of a roller discharger, wherein the plurality of cone buckets are located below the discharge roller and arranged side by side, and each cone bucket is composed of a cone bucket horizontal plate, a first cone bucket inclined plate, a second cone bucket inclined plate and a channel steel support connected in sequence, wherein:

[0006] One end of the cone bucket cross plate is fixed to the structure of the roller discharger in the opposite direction of rotation of the discharge roller, and the other end extends horizontally and is connected to one end of the first cone bucket inclined plate. The other end of the first cone bucket inclined plate extends downward in a direction of 5-10° to the vertical direction and is connected to one end of the second cone bucket inclined plate. The other end of the second cone bucket inclined plate extends upward in a direction of 15-20° to the horizontal direction and is connected to one end of the channel steel support. The other end of the channel steel support is fixed to the structure of the roller discharger in front of the rotation direction of the discharge roller.

[0007] Preferably, the width formed by arranging the multiple cone buckets side by side is equal to the length of the discharge roller of the roller discharger.

[0008] Preferably, each cone bucket has two channel steel supports, which are respectively connected to two side surfaces of each cone bucket.

[0009] Preferably, the two channel steel supports are symmetrically arranged.

[0010] Preferably, two channel steel supports are connected to the middle section of the second cone bucket inclined plate.

[0011] Preferably, the channel steel support extends downwardly at an angle of 5-10° to the horizontal.

[0012] Preferably, the cone bucket transverse plate, the first cone bucket inclined plate and the second cone bucket inclined plate are all carbon steel plates.

[0013] Preferably, the cone bucket transverse plate, the first cone bucket inclined plate and the second cone bucket inclined plate are all δ8 carbon steel plates.

[0014] Preferably, the cone bucket transverse plate and the first cone bucket inclined plate, and the first cone bucket inclined plate and the second cone bucket inclined plate are fixed by intermittent spot welding.

[0015] Preferably, the channel steel support is fully welded to the structure of the roller discharger in front of the rotation direction of the discharge roller.

[0016] Based on the above technical solution, the utility model adds a conical bucket to the back plate of the roller discharger. The conical buckets are arranged in a continuous pattern, and each small conical bucket is connected to the structure in front of the discharge roller. In this way, the conical bucket can block the back plate after filling, preventing material leakage and providing additional protection for the roller discharger's back plate. It can also control the circulation volume of the activated carbon catalyst to ensure normal production of the device. The conical bucket has a simple structure, is safe and reliable, and can quickly and easily solve the problem of back plate leakage, saving maintenance time and extending the service life of the discharge port.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the installation of a denitration tower roller discharger in the prior art;

[0020] Figure 2 It is a cross-sectional view of a roller discharger in the prior art;

[0021] Figure 3 The utility model is a schematic structural diagram of a material receiving device for unloading a desulfurization and denitrification device.

[0022] Description of Reference Numerals

[0023] 1-cone bucket horizontal plate 2-first cone bucket inclined plate

[0024] 3-Second cone hopper inclined plate 4-Channel steel support DETAILED DESCRIPTION

[0025] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0026] In the present invention, unless otherwise stated, directional words such as "up, down, front, back" contained in a term merely represent the orientation of the term in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0027] See also Figure 3The utility model provides a material receiving device for discharging desulfurization and denitrification equipment, which includes a plurality of cone buckets arranged at the back plate of a roller discharger. The plurality of cone buckets are located below the discharge roller and arranged side by side. Each cone bucket is composed of a cone bucket horizontal plate 1, a first cone bucket inclined plate 2, a second cone bucket inclined plate 3 and a channel steel support 4 connected in sequence, wherein,

[0028] One end of the cone bucket cross plate 1 is fixed to the structure of the roller discharger in the opposite direction of rotation of the discharge roller, and the other end extends horizontally and is connected to one end of the first cone bucket inclined plate 2. The other end of the first cone bucket inclined plate 2 extends downward in a direction of 5-10° to the vertical direction and is connected to one end of the second cone bucket inclined plate 3. The other end of the second cone bucket inclined plate 3 extends upward in a direction of 15-20° to the horizontal direction and is connected to one end of the channel steel support 4. The other end of the channel steel support 4 is fixed to the structure of the roller discharger in front of the rotation direction of the discharge roller.

[0029] The above technical solution adds conical buckets to the backplate of the roller discharger. These buckets are arranged in a continuous pattern, each connected to a structure in front of the discharge roller. This allows the buckets to block the backplate when full, preventing leakage and providing additional protection for the roller discharger's backplate. Furthermore, they control the circulation of activated carbon catalyst, ensuring normal production. This simple, safe, and reliable structure quickly and easily resolves backplate leakage issues, saving maintenance time and extending the service life of the discharge port.

[0030] In this embodiment, in order to expand the protection area of ​​the multiple cone buckets for the additional protection of the back plate of the roller discharger and prevent leakage as much as possible, preferably, the width formed by the multiple cone buckets arranged side by side is equal to the length of the discharge roller of the roller discharger.

[0031] In this embodiment, in order to improve the stability of the cone bucket after it is fixed so that it can be used for a long time, preferably, there are two channel steel supports 4 on each cone bucket and they are respectively connected to the two sides of each cone bucket.

[0032] In order to enable the above-mentioned channel steel supports 4 to generate supporting force evenly and further enhance the stability of the cone bucket, preferably, the two channel steel supports 4 are symmetrically arranged.

[0033] During actual use, the cone bucket horizontal plate 1, the first cone bucket inclined plate 2 and the second cone bucket inclined plate 3 connected end to end are relatively long, and the received materials are accumulated in the middle for a long time, which can easily cause the middle section to deform, thereby affecting the normal use of the entire cone bucket. In order to solve this problem, it is preferred to connect two channel steel supports 4 to the middle section of the second cone bucket inclined plate 3.

[0034] In addition, in order to ensure that the channel steel support 4 can provide sufficient supporting force to the structure formed by the cone bucket transverse plate 1, the first cone bucket inclined plate 2 and the second cone bucket inclined plate 3 after installation, it is preferred that the channel steel support 4 extends downward in a direction 5-10° to the horizontal direction.

[0035] In order to improve the mechanical strength of the cone bucket transverse plate 1, the first cone bucket inclined plate 2 and the second cone bucket inclined plate 3, and prevent them from being easily deformed or damaged during use and affecting the service life of the cone bucket, preferably, the cone bucket transverse plate 1, the first cone bucket inclined plate 2 and the second cone bucket inclined plate 3 are all carbon steel plates.

[0036] Further preferably, in order to make the cone bucket transverse plate 1, the first cone bucket inclined plate 2 and the second cone bucket inclined plate 3 of sufficient thickness, strong enough hardness and further improved loading capacity, preferably, the above-mentioned cone bucket transverse plate 1, the first cone bucket inclined plate 2 and the second cone bucket inclined plate 3 are all δ8 carbon steel plates.

[0037] Furthermore, in this embodiment, to optimize the connection between the various components of the cone bucket and its stability after being fixed, the cone bucket horizontal plate 1 and the first cone bucket inclined plate 2, as well as the first cone bucket inclined plate 2 and the second cone bucket inclined plate 3, are preferably fixed by intermittent spot welding. Similarly, the channel steel support 4 is preferably fully welded to the roller discharger structure in front of the discharge roller in the direction of rotation.

[0038] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0040] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A material receiving device for unloading of desulfurization and denitrification equipment, characterized in that: The material receiving device for discharging desulfurization and denitrification equipment comprises a plurality of cone buckets arranged at the back plate of the roller discharger, wherein the plurality of cone buckets are all located below the discharge roller and arranged side by side, and each cone bucket is composed of a cone bucket transverse plate (1), a first cone bucket inclined plate (2), a second cone bucket inclined plate (3) and a channel steel support (4) connected in sequence, wherein: One end of the cone bucket horizontal plate (1) is fixedly connected to the structure of the roller discharger in the opposite direction of rotation of the discharge roller, and the other end extends horizontally and is connected to one end of the first cone bucket inclined plate (2). The other end of the first cone bucket inclined plate (2) extends downward in a direction of 5-10 degrees to the vertical direction and is connected to one end of the second cone bucket inclined plate (3). The other end of the second cone bucket inclined plate (3) extends upward in a direction of 15-20 degrees to the horizontal direction and is connected to one end of the channel steel support (4). The other end of the channel steel support (4) is fixedly connected to the structure of the roller discharger in front of the rotation direction of the discharge roller.

2. The material receiving device for unloading of a desulfurization and denitrification device according to claim 1, characterized in that: The width formed by arranging a plurality of cone buckets side by side is equal to the length of the discharge roller of the roller discharger.

3. The material receiving device for unloading of a desulfurization and denitrification device according to claim 1, characterized in that: There are two channel steel supports (4) on each cone bucket, and the two channel steel supports (4) are respectively connected to the two side surfaces of each cone bucket.

4. The material receiving device for unloading of a desulfurization and denitrification device according to claim 3, characterized in that: The two channel steel supports (4) are symmetrically arranged.

5. The material receiving device for unloading of desulfurization and denitrification equipment according to claim 4, characterized in that: The two channel steel supports (4) are connected to the middle section of the second cone bucket inclined plate (3).

6. The material receiving device for unloading of a desulfurization and denitrification device according to claim 5, characterized in that: The channel steel support (4) extends downward in a direction 5-10 degrees to the horizontal direction.

7. The material receiving device for unloading of a desulfurization and denitrification device according to any one of claims 1 to 6, characterized in that: The cone bucket transverse plate (1), the first cone bucket inclined plate (2) and the second cone bucket inclined plate (3) are all made of carbon steel plates.

8. The material receiving device for unloading of a desulfurization and denitrification device according to claim 7, characterized in that: The cone bucket transverse plate (1), the first cone bucket inclined plate (2) and the second cone bucket inclined plate (3) are all made of δ8 carbon steel plates.

9. The material receiving device for unloading of a desulfurization and denitrification device according to claim 7, characterized in that: The cone bucket transverse plate (1) and the first cone bucket inclined plate (2), as well as the first cone bucket inclined plate (2) and the second cone bucket inclined plate (3) are fixed by intermittent spot welding.

10. The material receiving device for unloading of a desulfurization and denitrification device according to claim 7, characterized in that: The channel steel support (4) is fully welded and fixed to the structure of the roller discharger in front of the rotation direction of the discharge roller.

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