Fixed-point blanking device for fixed bed desulfurization

Abstract

The utility model provides a fixed-point blanking device for fixed bed desulfurization, which belongs to the technical field of fixed window desulfurization and comprises a plurality of running rails, at least one butt joint rail, a moving trolley, a driving mechanism and an opening and closing mechanism. The running track is positioned above a blanking port of the fixed bed; each butt joint rail is connected between the two adjacent running rails; the moving trolley is used for moving on the running track or the butt joint track, and a discharging port is formed in the bottom of the moving trolley. The driving mechanism is arranged on the moving trolley and is used for driving the moving trolley to move; and the opening and closing mechanism is arranged at the discharge hole and is used for opening or closing the discharge hole. The fixed-point blanking device for fixed bed desulfurization provided by the utility model is convenient to operate, reduces the working intensity and is beneficial to improving the desulfurization efficiency of the fixed bed.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixed bed desulfurization, and particularly relates to a fixed-point dropping device for fixed bed desulfurization. Background Art

[0002] During fixed-bed desulfurization, an appropriate amount of desulfurizer must be added to the top of the fixed bed. The conventional desulfurizer addition process involves placing a predetermined amount of desulfurizer in a bag, hoisting the bag above the fixed bed using an overhead crane, and then cutting the bag open to allow the desulfurizer to drop into the bed. This process is time-consuming, as the bag is easily shaken while being hoisted by the overhead crane. Once the overhead crane reaches the fixed bed, the bag must be stabilized before it can be cut open. This compromises the desulfurization efficiency of the fixed bed. Utility Model Content

[0003] The embodiment of the utility model provides a fixed-point dropping device for fixed-bed desulfurization, aiming to solve the technical problem that the process of adding desulfurizer into the fixed bed is time-consuming and affects the desulfurization effect of the fixed bed.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a fixed-point drop device for fixed-bed desulfurization, comprising:

[0005] A plurality of running tracks, wherein the plurality of running tracks are parallel to and spaced apart from each other, and the running tracks are located above the blanking opening of the fixed bed;

[0006] At least one docking track, each of the docking tracks being connected between two adjacent running tracks;

[0007] A mobile vehicle is used to move on the running track or the docking track, and a discharge port is provided at the bottom of the mobile vehicle;

[0008] A driving mechanism is provided on the mobile vehicle, and is used to drive the mobile vehicle to move;

[0009] An opening and closing mechanism is provided at the discharge port, and the opening and closing mechanism is used to open or close the discharge port.

[0010] In a possible implementation, a plurality of running wheels are provided at the bottom of the mobile vehicle, the driving mechanism is a first motor, a sprocket is fixed on the output shaft of the first motor and on one of the running wheels, and the two sprockets are connected by a chain transmission.

[0011] In a possible implementation, the mobile vehicle has a conical blanking portion at the bottom, a small end of the blanking portion is provided with a discharge channel, and the bottom end of the discharge channel forms the discharge port.

[0012] In a possible implementation, the opening and closing mechanism includes:

[0013] A first cylinder is fixedly connected to the bottom of the mobile vehicle, and the piston rod of the first cylinder is arranged horizontally;

[0014] A baffle is fixedly connected to the piston rod of the first cylinder, and the baffle abuts against the bottom end of the discharge channel and slides with the discharge channel.

[0015] In a possible implementation, a slide is protruding from the bottom end of the discharge channel, and a sliding groove cooperating with the slide is provided on the top surface of the baffle.

[0016] In a possible implementation, the opening and closing mechanism includes:

[0017] A shielding cover is provided at the bottom of the discharge channel, and the shielding cover is connected to the discharge channel via a rotating shaft;

[0018] The second cylinder has a cylinder body hinged to the bottom of the mobile vehicle, the piston rod of the second cylinder is tilted downward and rotated with the bottom plate of the shielding cover, and the second cylinder is used to drive the shielding cover to rotate to open the discharge port.

[0019] In a possible implementation, the bottom plate of the shielding cover is a curved plate, and the central axis of the curved plate coincides with the axis of the rotating shaft.

[0020] In one possible implementation, the mobile vehicle includes:

[0021] frame;

[0022] A base frame, fixed to the bottom of the surrounding frame;

[0023] The accommodating barrel is arranged inside the surrounding frame and is placed on the top of the base frame.

[0024] In one possible implementation, each of the running tracks is further provided with a conversion station, and the docking track is docked with the conversion stations on two adjacent running tracks respectively. The conversion station has a conversion track, and the conversion track has a first state of docking with the running track and a second state of docking with the docking track.

[0025] In a possible implementation, the conversion station includes:

[0026] a second motor, wherein the output shaft of the second motor is vertically arranged;

[0027] a fixed platform, fixedly connected to the output shaft of the second motor;

[0028] Wherein, the conversion track is arranged on the fixing platform.

[0029] Compared with the prior art, the solution shown in the embodiment of the present application is that the fixed beds on site are usually arranged in an array. By setting a running track on the top, it is convenient for the mobile vehicle to switch positions on the top of different fixed beds, and it can be used to add desulfurizer to multiple fixed beds; the mobile vehicle is driven by a driving mechanism, and the operator can remotely control the walking route of the mobile vehicle for convenient control. When the mobile vehicle reaches the top of the fixed bed where the desulfurizer needs to be added, the opening and closing mechanism controls the discharge port to open and drop the material downward. After a certain amount of desulfurizer is dropped, the opening and closing mechanism closes the discharge port, completing the process of adding the desulfurizer. The fixed-point dropping device for fixed-bed desulfurization of the utility model is easy to operate, reduces work intensity, and the process of adding the desulfurizer is rapid. It can be used for multiple fixed beds, which is conducive to improving the desulfurization efficiency of the fixed bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic top view of a fixed-point drop device for fixed-bed desulfurization provided by an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the main structure of a mobile vehicle used in an embodiment of the present utility model;

[0032] Figure 3 For the Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of a mobile vehicle used in an embodiment of the present utility model;

[0034] Figure 5 A schematic cross-sectional view of a mobile vehicle used in another embodiment of the present invention;

[0035] Figure 6 Another embodiment of the present invention adopts a discharge channel and a baffle along the Figure 5 Schematic diagram of the cross-sectional structure along the BB line.

[0036] Description of reference numerals:

[0037] 10- running track;

[0038] 20- Docking rail;

[0039] 30 - mobile vehicle; 301 - frame; 302 - chassis; 303 - container; 31 - travel wheel; 32 - blanking part; 33 - discharge channel; 34 - slide plate;

[0040] 40-driving mechanism; 41-first motor; 42-sprocket; 43-chain;

[0041] 50 - opening and closing mechanism; 51 - first cylinder; 52 - baffle; 53 - slide; 54 - shielding cover; 55 - second cylinder; 56 - arc plate; 57 - rotating shaft;

[0042] 60-conversion station; 61-fixed table; 62-conversion track. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0045] Unless otherwise expressly defined, the directional words in the claims, specification and the above-mentioned drawings of the present invention, such as the terms "upper", "lower", "top", "bottom", "front", "back", "inside", "outside", "center", "transverse", "longitudinal", "horizontal", "vertical", "left", "right", "clockwise", "counterclockwise", "high", "low", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific scope of protection of the present invention.

[0046] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the terms "fixed connection" or "fixed connection" are used, they should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0047] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0048] Please also refer to Figures 1 to 6The fixed-point drop-off device for fixed-bed desulfurization provided by the present invention is now described. The fixed-point drop-off device for fixed-bed desulfurization comprises a plurality of running rails 10, at least one docking rail 20, a moving vehicle 30, a driving mechanism 40, and an opening and closing mechanism 50. The plurality of running rails 10 are parallel to and spaced apart from each other, and the running rails 10 are located above the fixed-bed drop-off port; each docking rail 20 is connected between two adjacent running rails 10; the moving vehicle 30 is used to move on the running rails 10 or the docking rails 20, and a discharge port is provided at the bottom of the moving vehicle 30; the driving mechanism 40 is provided on the moving vehicle 30, and is used to drive the moving vehicle 30 to move; the opening and closing mechanism 50 is provided at the discharge port, and is used to open or close the discharge port.

[0049] Specifically, a sensor can be provided at the discharge port to judge the amount of material being discharged, thereby achieving quantitative discharge.

[0050] The fixed-point dropping device for fixed-bed desulfurization provided in this embodiment is compared with the prior art. The fixed beds on site are usually arranged in an array. By setting a running track 10 on the top, it is convenient for the mobile vehicle 30 to switch positions on the top of different fixed beds, and it can be used for adding desulfurizer to multiple fixed beds. The mobile vehicle 30 is driven by the driving mechanism 40, and the operator can remotely control the walking route of the mobile vehicle 30 for easy control. When the mobile vehicle 30 reaches the fixed bed where the desulfurizer needs to be added, the opening and closing mechanism 50 controls the discharge port to open and drop the material downward. After a certain amount of desulfurizer is dropped, the opening and closing mechanism 50 closes the discharge port, completing the process of adding the desulfurizer. The fixed-point dropping device for fixed-bed desulfurization of the utility model is easy to operate, reduces work intensity, and the process of adding the desulfurizer is fast. It can be used for multiple fixed beds, which is conducive to improving the desulfurization efficiency of the fixed bed.

[0051] In some embodiments, a specific embodiment of the driving mechanism 40 can be as follows: Figure 2 and Figure 4 The structure shown. Figure 2 and Figure 4 The bottom of the mobile vehicle 30 is provided with a plurality of running wheels 31. The driving mechanism 40 is a first motor 41. A sprocket 42 is fixed to the output shaft of the first motor 41 and to one of the running wheels 31. The two sprockets 42 are connected to each other by a chain 43. When the motor is started, the output shaft rotates, which drives one of the running wheels 31 to rotate. This running wheel 31 then drives the entire mobile vehicle 30 to move, while the remaining running wheels 31 rotate as the mobile vehicle 30 moves.

[0052] Taking the mobile vehicle 30 with four running wheels 31 as an example, two running wheels 31 are arranged on the front side of the mobile vehicle 30, and the other running wheel 31 is arranged on the rear side of the mobile vehicle 30, wherein a fixed shaft is connected between the two front running wheels 31, and a fixed shaft is also connected between the two rear running wheels 31. A sprocket 42 that is transmission-connected to the sprocket 42 on the motor is provided on the fixed shaft between the two front running wheels 31, and then when the motor is started, the two front running wheels 31 are driven to rotate. This structure can make the walking process of the mobile vehicle 30 more stable.

[0053] In some embodiments, an improved embodiment of the mobile vehicle 30 can be implemented as follows: Figure 3 and Figure 5 The structure shown. Figure 3 and Figure 5 The mobile cart 30 has a tapered drop portion 32 at the bottom. A discharge channel 33 is provided at the small end of the drop portion 32, and the bottom end of the discharge channel 33 forms a discharge port. The tapered drop portion 32 facilitates material discharge when the discharge port is opened. The desulfurizer in the mobile cart 30 slides down the inclined surface of the drop portion 32 due to gravity, preventing the desulfurizer from being retained and deteriorating inside the mobile cart 30, thereby affecting the desulfurization efficiency of the fixed bed. Furthermore, after adding the desulfurizer, there is no need to manually clean the desulfurizer inside the mobile cart 30, reducing labor intensity.

[0054] In some embodiments, a specific embodiment of the opening and closing mechanism 50 can be as follows: Figure 5 The structure shown. Figure 5 The opening and closing mechanism 50 includes a first cylinder 51 and a baffle 52. The first cylinder 51 is fixed to the bottom of the mobile vehicle 30, and its piston rod is arranged horizontally. The baffle 52 is fixed to the piston rod of the first cylinder 51. The baffle 52 abuts the bottom end of the discharge channel 33 and slides with the discharge channel 33. The piston rod of the first cylinder 51 retracts and extends, driving the baffle 52 to move, thereby removing the obstruction of the discharge port and opening it.

[0055] In some embodiments, an improved matching method of the discharge channel 33 and the baffle 52 can be as follows: Figure 6 The structure shown. Figure 6 The bottom end of the discharge channel 33 is provided with a slide plate 34, and the top surface of the baffle 52 is provided with a slide groove 53 that cooperates with the slide plate 34. The slide groove 53 can provide guidance for the sliding process of the baffle 52, thereby preventing the baffle 52 from deforming and tilting after sliding a certain number of times and affecting the blocking effect of the discharge port.

[0056] In some embodiments, a modified embodiment of the above-mentioned opening and closing mechanism 50 can be adopted as follows Figure 3 The structure shown. Figure 3The opening and closing mechanism 50 includes a shielding cover 54 and a second cylinder 55. The shielding cover 54 is located at the bottom of the discharge channel 33 and is connected to the discharge channel 33 by a rotating shaft 57. The cylinder body of the second cylinder 55 is hinged to the bottom of the mobile vehicle 30. The piston rod of the second cylinder 55 is tilted downward and rotates in conjunction with the bottom plate of the shielding cover 54. The second cylinder 55 is used to drive the shielding cover 54 to rotate and open the discharge port. The extension of the piston rod of the second cylinder 55 drives the shielding cover 54 to rotate. When the shielding cover 54 is rotated open, the discharge port is opened and the material is discharged. After the material is discharged, the piston rod of the second cylinder 55 retracts, causing the shielding cover 54 to return to its original state, at which point the discharge port is closed.

[0057] The shielding cover 54 in this embodiment rotates to switch the opening and closing state of the discharge port. Figure 5 The embodiment has a better sealing effect on the discharge port, which can avoid leakage caused by the baffle 52 not fitting tightly against the discharge port.

[0058] In some embodiments, an improved embodiment of the shielding cover 54 can be as follows: Figure 3 The structure shown. Figure 3 The bottom plate of the shielding cover 54 is a curved plate 56, and the central axis of the curved plate 56 coincides with the axis of the rotating shaft 57. Correspondingly, the bottom of the discharge channel 33 also has an adapting surface parallel to the plate surface of the curved plate 56.

[0059] When the shielding cover 54 is opened, the bottom is an arc-shaped plate 56, so the desulfurizer can fall on the arc-shaped plate 56 and quickly fall off, avoiding the desulfurizer from being retained in the gap; and because the bottom plate of the shielding cover 54 is an arc-shaped plate 56, the position of the falling material can also be finely adjusted by the different rotation angles of the shielding cover 54, which is convenient for use.

[0060] In some embodiments, a specific embodiment of the mobile vehicle 30 can be as follows: Figures 2 to 5 The structure shown. Figures 2 to 5 The mobile vehicle 30 includes an enclosure frame 301, a base frame 302, and a container 303. The base frame 302 is fixed to the bottom of the enclosure frame 301; the container 303 is located inside the enclosure frame 301 and placed on top of the base frame 302. Placing the container 303 inside the enclosure frame 301 facilitates replacement, making it convenient to replace the container 303 after a period of use. It also facilitates the provision of multiple spare container 303. Thus, while one container 303 is in use inside the enclosure frame 301, other container 303 can be loaded with desulfurizer and wait for use.

[0061] It should be noted that the frame 301 and the base frame 302 are integrally constructed, the above-mentioned walking wheels 31 are arranged at the bottom of the base frame 302, and the above-mentioned first cylinder 51 and the second cylinder 55 are also fixed to the bottom of the base frame 302; the above-mentioned blanking portion 32 and the discharge channel 33 are part of the accommodating barrel 303, and the conical blanking portion 32 is provided with a step placed on the base frame 302 to enable the base frame 302 to support the accommodating barrel 303. In order to further fix it, bolts can be installed between the base frame 302 and the accommodating barrel 303 for tightening.

[0062] In some embodiments, an improved embodiment of the above-mentioned running track 10 can be adopted as follows Figure 1 The structure shown. Figure 1 Each running track 10 is also provided with a conversion station 60, and the docking track 20 is docked with the conversion stations 60 on two adjacent running tracks 10 respectively. The conversion station 60 has a conversion track 62, and the conversion track 62 has a first state of docking with the running track 10 and a second state of docking with the docking track 20.

[0063] For example, when the docking track 20 is perpendicular to the running track 10 and the mobile vehicle 30 needs to move to the adjacent running track 10, it needs to first move to the conversion station 60 of the current running track 10. At this time, the conversion track 62 on the conversion station 60 docks with the running track 10, and then switches to the docking state with the docking track 20, and moves to the conversion station 60 on another moving track through the docking track 20.

[0064] This embodiment facilitates the mobile vehicle 30 to switch between multiple running tracks 10; as a variation, steerable wheels can also be provided at the bottom of the mobile vehicle 30 so as to automatically switch between the running track 10 and the docking track 20.

[0065] In some embodiments, a specific implementation of the above-mentioned conversion station 60 can be as follows Figure 1 The structure shown. Figure 1 The switching station 60 includes a second motor and a fixed platform 61. The second motor's output shaft is vertically arranged; the fixed platform 61 is fixedly connected to the second motor's output shaft; and a switching track 62 is provided on the fixed platform 61. The second motor drives the fixed platform 61 to rotate. The fixed platform 61 rotates forward or reverse 90 degrees to switch between the first and second states. This is convenient and can be operated remotely.

[0066] It should be noted that when the mobile vehicle 30 is located on the running track 10 or the docking track 20, since they are both composed of two rails arranged at intervals, the mobile vehicle 30 can drop materials at the interval between the two rails; a corresponding through hole is also provided on the fixed platform 61 for the mobile vehicle 30 to drop materials.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixed-point dropping device for fixed-bed desulfurization, characterized in that: include: A plurality of running tracks, wherein the plurality of running tracks are parallel to and spaced apart from each other, and the running tracks are located above the blanking opening of the fixed bed; At least one docking track, each of the docking tracks being connected between two adjacent running tracks; A mobile vehicle is used to move on the running track or the docking track, and a discharge port is provided at the bottom of the mobile vehicle; A driving mechanism is provided on the mobile vehicle, and is used to drive the mobile vehicle to move; An opening and closing mechanism is provided at the discharge port, and the opening and closing mechanism is used to open or close the discharge port.

2. The fixed-point dropping device for fixed-bed desulfurization according to claim 1, characterized in that: A plurality of running wheels are provided at the bottom of the mobile vehicle. The driving mechanism is a first motor. Sprockets are fixedly provided on the output shaft of the first motor and on one of the running wheels. The two sprockets are connected by a chain transmission.

3. The fixed-point dropping device for fixed-bed desulfurization according to claim 1, characterized in that: The mobile vehicle has a conical blanking portion at the bottom, a small end of the blanking portion is provided with a discharge channel, and the bottom end of the discharge channel forms the discharge port.

4. The fixed-point dropping device for fixed-bed desulfurization according to claim 3, characterized in that: The opening and closing mechanism comprises: A first cylinder is fixedly connected to the bottom of the mobile vehicle, and the piston rod of the first cylinder is arranged horizontally; A baffle is fixedly connected to the piston rod of the first cylinder, and the baffle abuts against the bottom end of the discharge channel and slides with the discharge channel.

5. The fixed-point dropping device for fixed-bed desulfurization according to claim 4, characterized in that: A slide plate is protruding from the bottom end of the discharge channel, and a sliding groove cooperating with the slide plate is provided on the top surface of the baffle.

6. The fixed-point dropping device for fixed-bed desulfurization according to claim 3, characterized in that: The opening and closing mechanism comprises: A shielding cover is provided at the bottom of the discharge channel, and the shielding cover is connected to the discharge channel via a rotating shaft; The second cylinder has a cylinder body hinged to the bottom of the mobile vehicle, the piston rod of the second cylinder is tilted downward and rotated with the bottom plate of the shielding cover, and the second cylinder is used to drive the shielding cover to rotate to open the discharge port.

7. The fixed-point dropping device for fixed-bed desulfurization according to claim 6, characterized in that: The bottom plate of the shielding cover is an arc-shaped plate, and the central axis of the arc-shaped plate coincides with the axis of the rotating shaft.

8. The fixed-point dropping device for fixed-bed desulfurization according to claim 1, characterized in that: The mobile vehicle comprises: frame; A base frame, fixed to the bottom of the surrounding frame; The accommodating barrel is arranged inside the surrounding frame and is placed on the top of the base frame.

9. The fixed-point dropping device for fixed-bed desulfurization according to claim 1, characterized in that: Each of the running tracks is also provided with a conversion station, and the docking track is docked with the conversion stations on two adjacent running tracks respectively. The conversion station has a conversion track, and the conversion track has a first state of docking with the running track and a second state of docking with the docking track.

10. The fixed-point dropping device for fixed-bed desulfurization according to claim 9, characterized in that: The conversion station includes: a second motor, wherein the output shaft of the second motor is vertically arranged; a fixed platform, fixedly connected to the output shaft of the second motor; Wherein, the conversion track is arranged on the fixing platform.

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