Hoisting device and method for hydrogen peroxide equipment
The efficient, safe, and clean replacement of catalysts in hydrogen peroxide equipment was achieved through hoisting devices and methods, solving the problems of low efficiency, high safety risks, and high costs in existing technologies, and ensuring the stable operation and economic benefits of the production unit.
Patent Information
- Application Number
- CN202511817686.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-01-09
AI Technical Summary
Existing hydrogen peroxide equipment suffers from problems such as low efficiency, high safety risks, serious pollution, and high costs during catalyst replacement. In particular, manual operation is carried out in narrow and dangerous spaces, resulting in long shutdown and maintenance cycles for production units, which affects the operating rate and economic benefits.
By employing hoisting devices and methods, and through a process of dismantling old modules layer by layer and installing new modules layer by layer, the catalyst baskets and spacers can be safely and efficiently replaced using the bottom support and modular design, combined with the hoisting device. Before hoisting, the catalyst is pre-filled outside the tower, and magnetic separation and precise docking technologies are used to ensure safety and stability.
It achieves efficient, safe, clean, and low-cost catalyst replacement, shortens downtime, eliminates personnel risks, ensures uniform catalyst loading and long-term stable operation of equipment, and reduces material loss and maintenance costs.
Smart Images
Figure CN121292250A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of hydrogen peroxide production technology, in particular to a lifting device and method for hydrogen peroxide equipment. BACKGROUND
[0002] Hydrogen peroxide (hydrogen peroxide) is an important basic chemical raw material, and its production process usually adopts anthraquinone method. In this method, the hydrogenation process is the core link, and the hydrogenation tower is an essential hydrogen peroxide equipment in the hydrogenation process, which is internally provided with a solid catalyst, and the working liquid and hydrogen gas occur catalytic hydrogenation reaction on the surface of the catalyst. The hydrogenation tower is usually provided with multiple layers of catalyst baskets, and the baskets are filled with palladium and other noble metal catalysts to provide a place for gas-liquid reaction.
[0003] As a consumable material, the activity of the catalyst will gradually decrease due to sintering, poisoning, carbon deposition and other reasons as the running time is prolonged, and it needs to be replaced regularly to ensure the continuous and stable operation of the hydrogen peroxide device. At present, the traditional mainstream way of replacing the catalyst in the industry is to open the manhole of the hydrogenation tower, and the operator enters the limited space in the tower to manually remove the deactivated waste catalyst from the fixed catalyst basket, and then fills the fresh catalyst into the basket. This "picking and replacing" mode has many inherent defects: Firstly, the working efficiency is extremely low and the economy is poor. The internal space of the hydrogenation tower is narrow and the environment is poor, and it completely depends on manual operation, which has high labor intensity and slow catalyst loading and unloading speed. The device shutdown for maintenance period is as long as several weeks, which seriously affects the production rate and economic benefit of the production device. Secondly, there is a high safety risk. There may be flammable and explosive gases such as hydrogen gas remaining in the tower, and it belongs to limited space, so the personnel operation faces the risk of suffocation, poisoning and explosion. At the same time, manual operation on high-level trays also has the safety hazard of high-altitude falling. Thirdly, manual filling of catalyst is difficult to ensure uniform and smooth bed layer, which is easy to cause process gas "partial flow" and reduce hydrogenation efficiency. SUMMARY
[0004] In order to improve the problems existing in the above-mentioned technology, the present application provides a lifting device and method for hydrogen peroxide equipment.
[0005] The lifting device and method for hydrogen peroxide equipment provided by the present application adopt the following technical solutions: A hoisting method for hydrogen peroxide equipment, the hydrogen peroxide equipment is provided with a bottom support part and a plurality of installation units stacked from top to bottom on the bottom support part, the top of the hydrogen peroxide equipment is provided with an entrance for the installation units to enter, each installation unit comprises a catalyst basket and a spacing part; the method comprises the following steps: (A) layer by layer removing old modules: using a hoisting device, the old installation units are hoisted out of the hydrogen peroxide equipment layer by layer from the upper layer to the lower layer; (B) layer by layer installing new modules: using the hoisting device, the new installation units are hoisted into the hydrogen peroxide equipment layer by layer from the lower layer to the upper layer and installed in place; wherein the catalyst basket in the new installation unit is pre-filled with catalyst outside the tower before hoisting.
[0006] By adopting the above technical scheme, the bottom support part serves as the bearing basis of the whole multi-layer system and provides a stable installation reference for the installation unit in the lowermost layer; the integrated design of the "catalyst basket" and the "spacing part" in each installation unit constitutes a function module that can be independently operated, wherein the basket undertakes the catalytic reaction function, and the spacing part ensures the necessary process space between layers; when replacing, the removal process (A) follows the sequence of "from the upper layer to the lower layer layer by layer", which avoids the instability risk of the upper layer module when removing the lower layer module, and ensures the safety and controllability of the operation process; the installation process (B) follows the sequence of "from the lower layer to the upper layer layer by layer" in reverse, which enables each newly installed unit to immediately obtain a solid support basis below it, realizing stable progress like building a building; the modular structure design of the bottom support part and the installation unit provides a physical basis for the whole carrying, and the standardized process of "removing old modules from top to bottom and installing new modules from bottom to top" ensures that the whole replacement operation is orderly and controllable like an assembly line. The hoisting device serves as an execution mechanism and is involved in every step of removal and installation, moving out complete old modules and implanting new modules.
[0007] In process (B), the new catalyst basket is pre-filled with catalyst outside the tower before hoisting, which completely separates the catalyst filling link from the narrow, high-risk confined space inside the hydrogen peroxide equipment, and enables the link to be completed by professional equipment in a clean, safe and efficient special site, which not only completely eliminates the risks of suffocation, poisoning, explosion and high-altitude falling faced by personnel operating in the space, but also ensures the uniformity and high cleanliness of catalyst filling, and completely eliminates the "partial flow" phenomenon caused by manual operation, metal pollution, dust impurities and uneven filling. The present application decouples "filling" and "installation" in space and time and redefines them, so that the manual in-tower filling operation in the traditional mode, which lasts for several weeks, is high-risk and highly polluting, is changed into a one-time fast, safe and clean modular overall replacement operation, and finally realizes a leap in efficiency, safety and product quality.
[0008] Optionally, the step (A) of hoisting out the old installation unit comprises: using the hoisting device to hoist out the old catalyst basket and the old spacer part from the hydrogen peroxide equipment respectively; the step (B) of installing the new installation unit comprises: using the hoisting device to hoist into the hydrogen peroxide equipment and install in place the new catalyst basket and the new spacer part respectively.
[0009] By adopting the above technical scheme, in the step (A) of removing the old module, the method does not discard the old catalyst basket and the spacer part as a whole, but instructs the hoisting device to hoist out the two respectively; this "hoisting out respectively" operation creates a key premise for subsequent selective processing, so that the waste catalyst basket with lower value as a consumable can be directly scrapped for recycling, and the spacer part made of corrosion-resistant metal, with stable structure and higher value, can be retained; then, in the step (B) of installing the new module, the hoisting device is instructed to hoist into the tower and install in place the new catalyst basket and the old spacer part which can be reused after being inspected and cleaned. This "one old and one new" collocation mode means that only the catalyst basket with relatively low value needs to be replaced in each replacement operation, and the entire installation unit does not need to be replaced, so as to strictly control the material cost of replacement on the core consumable. During the whole process, the hoisting device serves as a "material sorter" and a "precision installer" through step-by-step operation, and the spacer part is changed from a disposable accessory to a recyclable asset, so that the efficient and mechanized replacement of the catalyst core reaction part is ensured, and the reuse of the spacer part with relatively stable structure and higher value is realized, thereby significantly reducing the material loss cost of each replacement operation.
[0010] Optionally, the spacer part comprises a spacer ring, a support plate capable of abutting against the inner wall of the hydrogen peroxide equipment is slidably connected to the spacer ring, and a first driving member for driving the support plate to slide is arranged on the hoisting device; in the step (B), after the new installation unit is hoisted into the hydrogen peroxide equipment, the first driving member drives the support plate to slide until the support plate abuts against the inner wall of the hydrogen peroxide equipment.
[0011] By adopting the technical scheme, the support plate is arranged on the spacing ring in a sliding connection mode to form an execution terminal in contact with the inner wall of the tower; during hoisting and positioning, the support plate is driven by the first driving member to slide outward until it firmly abuts against and is pressed against the inner wall of the hydrogen peroxide equipment; this action causes the spacing ring to form a rigid connection with the inner wall of the equipment through the support plate, thereby partially transmitting and dispersing the weight of the entire spacing part and the upper catalyst basket and material carried thereby to the solid tower body itself instead of completely relying on the support of the lower basket. On the one hand, this significantly improves the positioning rigidity and anti-toppling capability of the spacing ring itself in the equipment, enabling it to serve as a more reliable intermediate support platform; on the other hand, this multi-point radial clamping structure couples the originally independently swaying installation units into a more stable whole, effectively inhibiting the swinging of the inner parts of the equipment that may be caused by fluid flow or pressure fluctuation during operation, and reducing the risk of fatigue damage.
[0012] Optionally, a plurality of support plates are arranged in the direction of the inner wall of the hydrogen peroxide equipment at intervals, and a sealing member capable of being attached to the inner wall of the hydrogen peroxide equipment is wrapped around the plurality of support plates.
[0013] By adopting the technical scheme, the first driving member drives the plurality of support plates to slide, and the sealing member (such as a flexible graphite pad, a metal-wound pad, or a rubber layer) wrapped around the surface of the support plate is in close surface contact with the inner wall of the tower; in this process, the support plate serves as a rigid framework to provide the support force required to anchor the spacing ring in the tower, and the sealing member serves as a flexible filling medium to elastically or plastically deform under the pressing force transmitted by the support plate and fill the gap between the support plate and the tower wall. By wrapping the sealing member around the plurality of support plates, the rigid mechanical connection established by the spacing ring is upgraded to a dual-function structure that combines high-strength support and high-efficiency process sealing. The entire spacing ring not only obtains a high positioning strength through the hard contact of the support plate with the tower wall, but also forms a ring-shaped sealing barrier between the outer periphery of the spacing ring and the inner wall of the tower through the filling effect of the sealing member. This barrier allows the process fluid (hydrogen and process liquid) to pass through the bed in each layer of catalyst basket in sequence for reaction, but cannot flow through the annular gap between the bed and the tower wall.
[0014] Optionally, a separation ring is arranged on the outer wall of the hydrogen peroxide equipment in an axial sliding manner, a first magnetic block is arranged on the inner wall of the separation ring, a second magnetic block is arranged on the side of the support plate facing the inner wall of the hydrogen peroxide equipment, and the first magnetic block and the second magnetic block repel each other magnetically; in step (A), when the old installation unit needs to be lifted out, the separation ring is slid along the outer wall of the equipment to a position corresponding to the support plate, and the repulsive force between the first magnetic block and the second magnetic block drives the support plate to slide inward, so that it is out of abutting state with the inner wall of the hydrogen peroxide equipment.
[0015] By adopting the technical scheme, when the old installation unit needs to be lifted out, an operator slides the separation ring along the equipment axial direction outside the tower, so that the first magnetic block on the outer wall of the separation ring moves to a position corresponding to the second magnetic block on the target support plate in the tower; since the first magnetic block and the second magnetic block repel each other, a strong repulsion force passing through the tower wall is immediately generated between the two; the repulsion force acts directly on the support plate as a non-contact "remote control" power, drives the support plate to slide radially inward to overcome the resistance such as friction, so that the seal covered at the front end of the support plate is separated from the close abutment state with the inner wall of the equipment, and the locking established by the first driving member is released. The linkage process of "outer ring movement -> magnetic force generation -> inner plate contraction" changes the loosening step that may originally need complex internal operation or strong prying into a simple, safe and standard operation that can be completed outside the tower.
[0016] Optionally, the spacer ring is provided with a driving seat, a driving block is slidably connected in the driving seat, the driving block has a cross section gradually decreasing from top to bottom, and the driving seat is provided with a positioning member for fixing the driving block; the support plate is provided with a push rod, an end of the push rod away from the support plate penetrates through the driving seat and slidably abuts against the inclined surface of the driving block, and the first driving member is used to drive the driving block to slide; in step (B), after the new installation unit is lifted into the hydrogen peroxide equipment, the first driving member drives the driving block to slide axially, the inclined surface of the driving block extrudes the push rod, and the support plate is driven to slide outward until abutting against the inner wall of the hydrogen peroxide equipment, and the position of the driving block is locked by the positioning member.
[0017] By adopting the technical scheme, when the new installation unit is lifted into position, the driving member is started to output an axial force to push the driving block with a cross section gradually decreasing from top to bottom to slide in the driving seat along the equipment axial direction; during the downward sliding of the driving block, the inclined conical surface or inclined surface continuously and uniformly extrudes the end of the push rod in contact with the driving block; according to the principle of inclined surface, the extrusion action converts the axial linear motion of the driving block into the radial outward linear motion of the push rod, and produces a force amplification effect; then, the radially pushed push rod pushes the support plate to slide outward against resistance until the seal covered on the plate is tightly pressed against the inner wall of the equipment; after that, the positioning member fixes the driving block so that it cannot retreat, thereby firmly locking the position and pressing force of the support plate obtained by the push rod, forming a mechanically self-locking stable state. The above process converts the sealing action into a controllable, measurable and long-term maintained precise mechanical process through the synergistic action of "axial driving input -> inclined surface conversion and force amplification -> push rod synchronous radial output -> support plate executing pressing and sealing -> positioning member mechanical locking", effectively resisting the vibration and pressure fluctuation in the equipment operation, and greatly improving the long-term reliability of the seal.
[0018] Optionally, a ring cavity is formed in the drive seat, and a second driving member is arranged on the hoisting device to drive the driving block to rotate in the ring cavity; the positioning member comprises an upper abutting plate and a lower abutting plate arranged in the ring cavity, and a fixing block is arranged on the driving block to abut against the upper abutting plate away from the lower abutting plate; in step (B), when the driving block slides to the bottom to abut against the lower abutting plate, the second driving member drives the driving block to rotate in the ring cavity, so that the fixing block rotates to abut against the upper abutting plate.
[0019] By adopting the above technical scheme, the driving block slides along the axial direction under the driving of the first driving member, and the inclined surface of the driving block pushes the push rod to make the supporting plate press the inner wall. When the driving block slides to the bottom to abut against the lower abutting plate, the second driving member is started to drive the driving block to rotate in the ring cavity of the drive seat. With the rotation of the driving block, the fixing block arranged thereon rotates until it is rotated into and firmly abuts against the lower side of the upper abutting plate prearranged in the ring cavity. At this time, the driving block is tightly constrained in the axial direction between the upper abutting plate and the lower abutting plate at the bottom of the ring cavity, forming a mechanical buckle type locking structure. The two-step operation of “sliding to position → rotating and locking” makes the driving block unable to axially retreat due to vibration or internal pressure change, thereby ensuring the pressing force of the supporting plate acting on the push rod.
[0020] A hoisting device for a hydrogen peroxide equipment is applied to the hoisting method for the hydrogen peroxide equipment, and the hoisting device comprises a hoisting frame, and a lifting lug is arranged on the hoisting frame to be connected with a lifting hook of a crane; a plurality of first matching rods are arranged on the hoisting frame, a plurality of first matching blocks are arranged on the inner wall of the spacer ring, a first matching groove is formed in each first matching block, and a first power unit is arranged on the hoisting frame to drive the plurality of first matching rods to be inserted into the first matching groove.
[0021] By adopting the above technical scheme, the hoisting device is hung on the lifting hook of the crane through the lifting lug arranged thereon. After the hoisting frame is moved to above the spacer ring to be hoisted, the first power unit drives the plurality of first matching rods to move, so that the first matching rods are accurately inserted into the first matching grooves corresponding to the first matching blocks on the inner wall of the spacer ring, thereby establishing reliable connection. Since all the connecting components (matching blocks and matching grooves) are located on the inner circumferential surface of the spacer ring, the top end and the bottom end of the spacer ring can maintain complete and flat planes. This design has two key advantages: first, for the catalyst basket already positioned below, there is no protruding hoisting block above to block the smooth falling and accurate fitting of the spacer ring above, thereby ensuring the integrity of the interlayer seal; second, for the catalyst basket to be installed above, the bottom is a clean and protrusion-free supporting plane, which ensures that the catalyst basket can be smoothly positioned and will not be damaged or deviated due to bumping the hoisting block.
[0022] Optionally, the lifting frame is provided with a plurality of second matching rods, the catalyst basket is provided with a plurality of second matching blocks, each of the second matching blocks is provided with a second matching groove, each of the second matching grooves is capable of inserting one of the second matching rods, and the lifting frame is provided with a second power unit for driving the plurality of second matching rods to be respectively inserted into the second matching grooves.
[0023] By adopting the above technical scheme, when a new "installation unit" (composed of a catalyst basket and a spacer ring) needs to be installed, the suspended lifting frame is positioned above the catalyst basket and the spacer ring which have been pre-installed with catalysts in sequence. First, the second power unit is started to drive the plurality of second matching rods to move and be precisely inserted into the second matching grooves of the second matching blocks of the catalyst basket, so as to realize the connection between the lifting frame and the catalyst basket; then, the first power unit is started to drive the plurality of first matching rods to be inserted into the first matching grooves of the first matching blocks of the inner wall of the spacer ring, so as to realize the connection between the lifting frame and the spacer ring; at this time, the lifting frame is connected to the catalyst basket and the spacer ring through the two sets of matching rod systems, so that the catalyst basket and the spacer ring can be pre-connected outside the hydrogen peroxide equipment to form a stable "lifting combination", and the two can be synchronously transported into the hydrogen peroxide equipment; in this process, the matching rod systems driven by the two sets of power units serve as "mechanical hands" to realize the grabbing, combination and synchronous carrying of the catalyst basket and the spacer ring. This makes the lifting operation which originally needs to be performed twice and is difficult to be aligned in the air into one precise and controllable process.
[0024] Optionally, the first matching rod is provided with a first sensing member for sensing the position of the first matching block, and the first power unit is electrically connected with the first sensing member.
[0025] By adopting the above technical scheme, when the lifting device is lifted by the crane into the hydrogen peroxide equipment and is preliminarily suspended above the spacer ring to be lifted, the first sensing member starts to work to detect the relative position and distance of the first matching block and the first matching groove on the inner wall of the spacer ring; the first sensing member converts the detected position data (such as the offset and distance value) into an electrical signal and continuously feeds back to the control system; the control system (which can be integrated into the first power unit or be an independent PLC) calculates the direction and distance to be adjusted according to the received electrical signal and sends a precise displacement instruction to the first power unit; the first power unit drives the first matching rod to be finely adjusted so that it can be precisely connected to the first matching groove, thereby improving the connection precision.
[0026] In summary, the present application has at least one of the following beneficial technical effects: 1. Achieving efficient and safe modular replacement: By the method of "overall hoisting and layer-by-layer replacement", the traditional high-risk and low-efficiency manual operation in the tower is transformed into the process of pre-assembly outside the tower and mechanized installation inside the tower, greatly shortening the parking time, eliminating the risk of personnel entering the restricted space, and fundamentally eliminating human-induced pollution; 2. Ensuring the accuracy and stability of the inner part installation: Through the adjustable support structure of "spacer ring-supporting plate-driving part" and the precise docking mechanism of "matching rod-matching groove", the inner part is quickly centered, firmly fixed and reliably sealed in the tower, effectively preventing flow deviation, swing and leakage during operation, and ensuring reaction efficiency and long-term equipment operation; 3. Reducing long-term maintenance costs: By using the "magnetic separation" technology to remotely and non-destructively loosen the supporting plate, and supporting the "catalyst basket and spacer part replacement" scheme, the higher value spacer part can be reused, significantly reducing spare parts consumption and replacement costs; 4. Improving the automation and reliability of the operation: Through the closed-loop control system of "inductive positioning-electrical signal control-power drive" and the mechanical self-locking mechanism of "inclined surface driving-rotary locking", the hoisting and docking process is automated and intelligentized, reducing the dependence on the experience of operators and improving the success rate and consistency of the operation. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is a schematic diagram of the overall structure of a hoisting device for a hydrogen peroxide equipment in embodiment 1 of the present application; Figure 2 is a schematic diagram of the overall structure of a catalyst basket in embodiment 1 of the present application; Figure 3 is a schematic diagram of the overall structure of a spacer part in embodiment 1 of the present application; Figure 4 is a schematic diagram of the cooperation between the installation unit and the hydrogen peroxide equipment in embodiment 1 of the present application; Figure 5 is an enlarged view of part A of Figure 4 Figure 6 is a schematic diagram of the application of a hoisting method for a hydrogen peroxide equipment in embodiment 2 of the present application; Figure 7 is a sectional side view of Figure 6 Figure 8 is a schematic diagram of the installation unit located in the hydrogen peroxide equipment in embodiment 2 of the present application.
[0028] Explanation of reference signs: 1, hydrogen peroxide equipment; 2, bottom support part; 3, mounting unit; 301, catalyst basket; 302, spacing part; 4, inlet; 5, hoisting device; 6, spacing ring; 7, support plate; 8, sealing element; 801, sealing gasket; 9, separation ring; 10, driving seat; 11, driving block; 12, push rod; 13, ring cavity; 14, upper stop plate; 15, lower stop plate; 16, fixing block; 17, hoisting frame; 1701, fixed part; 1702, movable part; 18, lifting lug; 19, first matching rod; 20, first matching block; 21, first matching groove; 22, first power part; 2201, first electric control push rod; 23, second power part; 2301, second electric control push rod; 24, crane; 25, third electric control push rod; 26, fourth electric control push rod; 27, driving box; 28, center rod; 29, center block; 30, center hole; 31, mounting frame; 32, lead screw; 33, third driving motor; 34, cover; 35, extension plate; 36, L-shaped sliding block; 37, L-shaped sliding groove; 38, bottom plate support plate; 39, first driving motor; 40, first connecting rod; 41, second connecting rod; 42, second matching block; 43, second matching groove; 44, second matching rod. DETAILED DESCRIPTION
[0029] The following will be described in detail in combination with the accompanying drawings. Figures 1-8 The present application is further described in detail.
[0030] Example 1 The present application discloses a hoisting device for hydrogen peroxide equipment, referring to Figures 1-5 The hoisting device 5 comprises a hoisting frame 17, wherein the hoisting frame 17 is provided with a lifting lug 18 used to be connected with a hook of a crane 24; the hoisting frame 17 is provided with a plurality of first matching rods 19, and the spacing part 302 is provided with a plurality of first matching blocks 20, each of which is provided with a first matching groove 21, and the hoisting frame 17 is provided with a first power part 22 used to drive the plurality of first matching rods 19 to be inserted into the first matching grooves 21 respectively.
[0031] In the embodiment 1 of the present application, the lifting frame 17 can be docked with the crane 24 in the prior art, and the lifting frame 17 is driven to move by the crane 24, so that the lifting frame 17 can move flexibly in multiple directions. It should be noted that the technical solution claimed in the embodiment 1 of the present application does not involve any improvement on the structure of the crane 24 itself. The crane 24 is a general lifting device such as a conventional bridge crane 24, a gantry crane 24 or a truck crane, and the lifting device 5 is docked with the lifting hook or other connecting structure of the crane 24 through a standard interface such as a lifting lug 18 arranged at the top of the lifting device 5, so as to realize the positioning and movement of the lifting device 5 in three-dimensional space by using the lifting, longitudinal movement (gauge movement) and transverse movement (carriage movement) functions provided by the crane 24. The present application solves the special technical problems mentioned in the background art by the cooperative work of the special lifting device 5 and the general crane 24.
[0032] With reference to Figures 1-5 The lifting frame 17 is provided with a plurality of second matching rods 44, and the catalyst basket 301 is provided with a plurality of second matching blocks 42. Each second matching block 42 is provided with a second matching groove 43, and each second matching groove 43 can be inserted with a second matching rod 44. The lifting frame 17 is provided with a second power part 23 for driving the plurality of second matching rods 44 to be inserted into the second matching grooves 43, respectively.
[0033] With reference to Figures 1-5 In the embodiment 1 of the present application, two first matching blocks 20 are provided, and the two first matching blocks 20 are arranged in radial mirror image along the cross section of the hydrogen peroxide equipment 1. Two first matching rods 19 are provided corresponding to the first matching blocks 20. Two second matching blocks 42 are provided, and the two second matching blocks 42 are arranged in radial mirror image along the cross section of the hydrogen peroxide equipment 1. Two second matching rods 44 are provided corresponding to the second matching blocks 42.
[0034] With reference to Figures 1-5 In the embodiment 1 of the present application, the first power part 22 is selected as two first electric control push rods 2201 arranged horizontally on the lifting frame 17. Two first matching rods 19 are connected with the corresponding first electric control push rods 2201 through a first connecting rod 40, respectively. The extension and retraction of the movable end of the first electric control push rod 2201 can drive the first connecting rod 40 to move, thereby driving the two first matching rods 19 to move. The two first matching rods 19 can move in the direction of moving away from or approaching each other to disengage or insert into the corresponding first matching grooves 21.
[0035] With reference to Figures 1-5In the embodiment 1 of the present application, the second power part 23 is selected as two second electric control push rods 2301 horizontally arranged on the hoisting frame 17, and the two second matching rods 44 are respectively connected with the corresponding second electric control push rod 2301 through a second connecting rod 41. The extension and retraction of the movable end of the second electric control push rod 2301 can drive the second connecting rod 41 to move, thereby driving the two second matching rods 44 to move. The two second matching rods 44 can move in the direction of moving away from or approaching each other to disengage or insert into the corresponding second matching groove 43.
[0036] With reference to Figures 1-5 , the first matching rod 19 is provided with a first sensing part (not shown in the figure) for sensing the position of the first matching block 20, and the first power part 22 is electrically connected with the first sensing part; the second matching rod 44 is provided with a second sensing part (not shown in the figure) for sensing the position of the second matching block 42, and the second power part 23 is electrically connected with the second sensing part.
[0037] With reference to Figures 1-5 In the embodiment 1 of the present application, the first sensing part and the second sensing part are both selected as laser ranging sensors (not shown in the figure). The laser ranging sensor as the first sensing part is electrically connected with the first electric control push rod 2201, for detecting the relative position between the first matching rod 19 and the first matching groove 21 in real time during the docking process, and feeding back the position signal to the control system (not shown in the figure). The control system sends a signal, and then the first electric control push rod 2201 operates to make the first matching rod 19 accurately insert into the first matching groove 21. The operation of the laser ranging sensor as the second sensing part is the same.
[0038] With reference to Figures 1-5 In the embodiment 1 of the present application, in order to further improve the flexibility and accuracy of the overall operation of the hoisting device 5, the hoisting frame 17 is divided into a fixed part 1701 and a movable part 1702. The lifting lug 18 for docking with the hook of the crane 24 is arranged on the fixed part 1701, and the first electric control push rod 2201 and the second electric control push rod 2301 are both arranged on the movable part 1702. The first driving motor 39 is arranged in the fixed part 1701, the output shaft of the first driving motor 39 is coaxially fixedly connected with the rotating center shaft of the movable part 1702, and the rotation of the output shaft of the first driving motor 39 can drive the movable part 1702 to rotate. The laser ranging sensors as the first sensing part and the second sensing part are both electrically connected with the first driving motor 39, and the first driving motor 39 can be driven to operate by the control system to offset and compensate the positions of the first matching rod 19 and the second matching rod 44.
[0039] With reference to Figures 1-5In the embodiment 1 of the present application, in order to improve the stability of the movable part 1702 during rotation, a plurality of L-shaped sliding blocks 36 are fixed to the top of the movable part 1702, and L-shaped sliding grooves 37 for the movement of the corresponding L-shaped sliding blocks 36 are formed on the fixed part 1701, and the L-shaped sliding grooves 37 are annular sliding grooves.
[0040] The implementation principle of the lifting device for the hydrogen peroxide equipment in the embodiment 1 of the present application is as follows: when a new installation unit 3 needs to be installed, the suspended lifting frame 17 is positioned above the catalyst basket 301 and the spacing part 302 in which the catalyst has been pre-installed. First, the second electric control push rod 2301 drives the plurality of second matching rods 44 to move and accurately insert into the second matching grooves 43 of the second matching blocks 42, so as to realize the connection between the lifting frame 17 and the catalyst basket 301; then, the first electric control push rod 2201 drives the plurality of first matching rods 19 to insert into the first matching grooves 21 of the first matching blocks 20, so as to realize the connection between the lifting frame 17 and the spacing part 302; at this time, the lifting frame 17 is connected to the catalyst basket 301 and the spacing part 302 through the two sets of matching rod systems, so that the catalyst basket 301 and the spacing part 302 can be pre-connected outside the hydrogen peroxide equipment 1 to form a stable "lifting combination", and the two can be synchronously transported into the hydrogen peroxide equipment 1. In this process, the two sets of matching rod systems driven by the power parts act as "mechanical hands" to realize the grabbing, combination and synchronous carrying of the catalyst basket 301 and the spacing part 302. This makes the lifting operation, which originally needs to be performed twice and is difficult to align in the air, into a once-precise-controllable process.
[0041] Embodiment 2 The embodiment 2 of the present application discloses a lifting method for a hydrogen peroxide equipment, which uses the lifting device for the hydrogen peroxide equipment disclosed in the embodiment 1, and refers to Figures 6-8 The hydrogen peroxide equipment 1 is provided with a bottom support part 2 and a plurality of installation units 3 stacked from top to bottom on the bottom support part 2, and the top of the hydrogen peroxide equipment 1 is provided with an entrance 4 for the installation unit 3 to enter, and each installation unit 3 includes a catalyst basket 301 and a spacing part 302.
[0042] The method uses a special lifting device 5, which includes two major steps of layer-by-layer removal of old modules and layer-by-layer installation of new modules.
[0043] Referring to Figures 3-5, the spacer 302 comprises a spacer ring 6, a plurality of support plates 7 capable of abutting the inner wall of the hydrogen peroxide equipment 1 are slidably connected on the spacer ring 6, the plurality of support plates 7 are arranged at intervals along the direction of the inner wall of the hydrogen peroxide equipment 1, a plurality of sealing elements 8 capable of being attached to the inner wall of the hydrogen peroxide equipment 1 are coated on the plurality of support plates 7, and the hoisting device 5 is provided with a first driving element for driving the support plates 7 to slide; the spacer ring 6 is provided with a driving seat 10, a driving block 11 is vertically and slidably connected in the driving seat 10, the driving block 11 has a cross section that gradually decreases from top to bottom, the driving seat 10 is provided with a positioning element for fixing the driving block 11; the support plate 7 is provided with a push rod 12, one end of the push rod 12 away from the support plate 7 penetrates the driving seat 10 and slidably abuts the inclined surface of the driving block 11, the first driving element is used to drive the driving block 11 to slide, the inclined surface of the driving block 11 extrudes the push rod 12, converts the axial motion into radial thrust, and drives the support plate 7 to slide outward until abutting the inner wall of the equipment, that is, the first driving element drives the plurality of support plates 7 to synchronously slide by driving the sliding of the driving block 11.
[0044] Referring to Figures 3-5 , a ring cavity 13 is formed in the driving seat 10, and the hoisting device 5 is provided with a second driving element for driving the driving block 11 to rotate in the ring cavity 13; the positioning element comprises an upper abutting plate 14 and a lower abutting plate 15 arranged in the ring cavity 13, and the driving block 11 is provided with a fixing block 16 for abutting the side of the upper abutting plate 14 away from the lower abutting plate 15.
[0045] In the embodiment 2 of the present application, the sealing element 8 is selected as a flexible sealing gasket 801, and the sealing gasket 801 has a certain resilience, which facilitates the resetting of the plurality of support plates 7. The bottom support part 2 is selected as a bottom support plate 38 fixed to the bottom of the hydrogen peroxide equipment 1.
[0046] Referring to Figures 1-5 , in the embodiment 2 of the present application, the movable part 1702 of the hoisting device 5 is horizontally provided with a third electric control push rod 25, the first driving element is selected as a fourth electric control push rod 26 arranged on the movable end of the third electric control push rod 25, the fourth electric control push rod 26 is perpendicular to the third electric control push rod 25, and the fixed end of the fourth electric control push rod 26 is connected with the third electric control push rod 25; the movable end of the fourth electric control push rod 26 is fixed with a driving box 27, and the second driving element is selected as a second driving motor (not shown in the figure) installed in the driving box 27, and the output shaft of the second driving motor is coaxially and fixedly connected with a center rod 28 in L shape; the top of the driving block 11 is fixed with a center block 29, the center block 29 is provided with a center hole 30, and the horizontal part of the center rod 28 can be inserted into the center hole 30.
[0047] When the driving block 11 is driven to move by the lifting device 5, under the actions of the third electric push rod 25, the fourth electric push rod 26 and the second driving motor, the horizontal part of the center rod 28 can be inserted into the center hole 30, and the center rod 28 is thereby connected with the center block 29, after which the movement of the center rod 28 can drive the center block 29 to move, and the driving block 11 can thereby be flexibly rotated and slid.
[0048] With reference to Figures 6-7 The outer wall of the hydrogen peroxide equipment 1 is axially slidably provided with a separation ring 9, the inner wall of the separation ring 9 is provided with a first magnetic block (not shown in the figure), the side of the support plate 7 facing the inner wall of the hydrogen peroxide equipment 1 is provided with a second magnetic block (not shown in the figure), the first magnetic block and the second magnetic block repel each other magnetically; one side of the hydrogen peroxide equipment 1 is provided with two mounting racks 31, the two mounting racks 31 are oppositely arranged and respectively located on the two sides of the hydrogen peroxide equipment 1, each of the two mounting racks 31 is rotationally connected with a lead screw 32, the lead screw 32 is driven to rotate by a third driving motor 33 arranged at the top of the mounting rack 31, the output shaft of the third driving motor 33 penetrates the top of the mounting rack 31 and is fixedly connected with the lead screw 32 coaxially, each of the two mounting racks 31 is provided with an extension plate 35 at the two ends, the two extension plates 35 are fixedly connected with the lead screw nuts of the two lead screws 32 respectively, the rotation of the output shaft of the third driving motor 33 can drive the lead screw 32 to rotate, and the lead screw 32 can in turn drive the separation ring 9 to slide along the axis of the hydrogen peroxide equipment 1.
[0049] In the embodiment 2 of the present application, the size of the inlet 4 arranged at the top of the hydrogen peroxide equipment 1 is consistent with the size of the cross section of the hydrogen peroxide equipment 1, and the inlet 4 is connected with a cover 34 through a flange plate to close the inlet 4.
[0050] (A) Old module is removed layer by layer: A1: The inlet 4 of the hydrogen peroxide equipment 1 is communicated with the outside world; A2: The lifting frame 17 enters the hydrogen peroxide equipment 1; A3: The lifting frame 17 is controlled to be positioned above the uppermost old installation unit 3, the first matching rod 19 is inserted into the first matching groove 21 of the corresponding spacing ring 6, the second matching rod 44 is inserted into the second matching groove 43 of the corresponding catalyst basket 301, and the spacing part 302 and the catalyst basket 301 are respectively grabbed tightly; The horizontal part of the center rod 28 is inserted into the center hole 30, the center rod 28 is driven to move, and the center rod 28 is rotated to release the abutment between the fixing block 16 and the upper abutting plate 14; The center rod 28 moves upward to drive the driving block 11 to move upward, the end part of the push rod 12 no longer abuts against the inclined surface of the driving block 11, and the rebound of the sealing gasket 801 drives the plurality of support plates 7 to shrink inward; A4: The third driving motor 33 drives the separation ring 9 to slide, the separation plate slides to the position of the support plate 7 of the uppermost old installation unit 3, the first magnetic block on the inner wall of the separation ring 9 and the second magnetic block on the support plate 7 repel each other due to magnetism to generate repulsion force, which further drives the support plate 7 to contract inwardly, so that it is separated from the inner wall of the tower; A5: The crane 24 drives the lifting frame 17 to move away from the hydrogen peroxide equipment 1, and the lifting frame 17 drives the disassembled separation ring 6 and catalyst basket 301 to move away from the inside of the hydrogen peroxide equipment 1; A6: Repeat steps A2-A4 to disassemble all old installation units 3 layer by layer from the upper layer to the lower layer.
[0051] (B) Install new modules layer by layer: B1: The new catalyst basket 301 pre-filled with catalyst is docked with the new separation ring 6 to form a new installation unit 3, and the lifting frame 17 is connected with the new installation unit 3; B2: The lifting frame 17 drives the new installation unit 3 to enter the hydrogen peroxide equipment 1, and is accurately placed on the bottom support part 2 or the lower separation ring 6 from the lower layer; B3: After being in place, the horizontal part of the center rod 28 is inserted into the center hole 30, the driving center rod 28 slides, the driving block 11 slides downward, the inclined surface of the driving block 11 extrudes the push rod 12 to convert the axial motion into radial thrust, the support plate 7 slides outward until the sealing gasket 801 abuts against the inner wall of the equipment; The driving center rod 28 rotates to drive the driving block 11 to rotate so that the fixed block 16 abuts against the upper abutting plate 14, the bottom of the driving block 11 abuts against the lower abutting plate 15, and the position of the driving block 11 is fixed; B4: The horizontal part of the center rod 28 is separated from the center hole 30, the first matching rod 19 is separated from the first matching groove 21 of the corresponding separation ring, the second matching rod 44 is separated from the second matching groove 43 of the corresponding catalyst basket 301, and the lifting frame 17 moves away from the inside of the hydrogen peroxide equipment 1; B5: Repeat steps B1-B4 to install all new installation units 3 layer by layer from the lower layer to the upper layer until the replacement is completed; B6: The entrance 4 of the hydrogen peroxide equipment 1 is closed by the cover 34.
[0052] The implementation principle of the hoisting method for the hydrogen peroxide equipment in the embodiment 2 of the present application is that: the core of the method is to change the traditional high-risk and low-efficiency manual operation in the tower into an advanced operation mode of "preloading outside the tower, modular hoisting, and accurate positioning in the tower". Through the special hoisting device 5 and the built-in magnetic separation, inclined surface driving and pressing, mechanical locking and other mechanisms, the efficient and non-destructive replacement of the catalyst basket 301 and the spacing part 302 is realized. The whole process is safe, controllable and clean, which fundamentally solves the problems of low efficiency, high risk and easy pollution in the traditional way, and ensures the continuity of production and the quality of products.
[0053] Embodiment 3 The embodiment 3 of the present application discloses a hoisting method for a hydrogen peroxide equipment, which uses the hoisting device for the hydrogen peroxide equipment disclosed in the embodiment 1. The difference between the embodiment 3 and the embodiment 2 is that: (A) Layer-by-layer removal of old modules: A1: The inlet 4 of the hydrogen peroxide equipment 1 is connected with the outside; A2: The hoisting frame 17 enters the hydrogen peroxide equipment 1; A3: The hoisting frame 17 is controlled to be positioned above the uppermost old installation unit 3, the first matching rod 19 is inserted into the first matching groove 21 of the corresponding spacing ring 6, and the hoisting frame 17 grabs the spacing part 302; The horizontal part of the center rod 28 is inserted into the center hole 30, the center rod 28 is driven to move, and the center rod 28 rotates to release the abutment between the fixed block 16 and the upper abutting plate 14; The center rod 28 moves upward to make the driving block 11 move upward, the end of the push rod 12 is no longer in abutment with the inclined surface of the driving block 11, and the rebound of the sealing gasket 801 drives the plurality of support plates 7 to shrink inward; The third driving motor 33 drives the separation ring 9 to slide, the separation plate slides to the position of the support plate 7 of the uppermost old installation unit 3, the first magnetic block on the inner wall of the separation ring 9 and the second magnetic block on the support plate 7 repel each other due to magnetism to generate repulsive force, which further drives the support plate 7 to shrink inward, so that it is separated from the abutment with the tower wall; The crane 24 drives the hoisting frame 17 to leave the hydrogen peroxide equipment 1, and the hoisting frame 17 drives the removed spacing ring 6 to leave the inside of the hydrogen peroxide equipment 1; A4: The hoisting frame 17 enters the hydrogen peroxide equipment 1; A5: The hoisting frame 17 is controlled to be positioned above the uppermost old installation unit 3, the second matching rod 44 is inserted into the second matching groove 43 of the corresponding catalyst basket 301, the hoisting frame 17 grabs the catalyst basket 301, the crane 24 drives the hoisting frame 17 to leave the hydrogen peroxide equipment 1, and the hoisting frame 17 drives the removed catalyst basket 301 to leave the inside of the hydrogen peroxide equipment 1; A6: repeat steps A2-A4, remove all old installation units 3 from the upper layer to the lower layer layer by layer.
[0054] (B) Install new modules layer by layer: B1: connect the new catalyst basket 301 filled with catalyst with the lifting frame 17; B2: the lifting frame 17 drives the new catalyst basket 301 into the hydrogen peroxide equipment 1, and is accurately placed on the bottom support part 2 or the lower layer spacing ring 6, the second matching rod 44 is separated from the second matching groove 43 of the corresponding catalyst basket 301, and the lifting frame 17 leaves the inside of the hydrogen peroxide equipment 1; B3: connect the spacing ring 6 with the lifting frame 17; B4: the lifting frame 17 drives the spacing ring 6 into the hydrogen peroxide equipment 1, the horizontal part of the center rod 28 is inserted into the center hole 30, the center rod 28 is driven to slide, the driving block 11 slides downward, the inclined surface of the driving block 11 extrudes the push rod 12, converts the axial motion into radial thrust, and the support plate 7 slides outward until the sealing gasket 801 is tightly contacted with the inner wall of the equipment; The driving center rod 28 rotates, the driving block 11 rotates to make the fixed block 16 abut with the upper abutting plate 14, the bottom of the driving block 11 abuts with the lower abutting plate 15, and the position of the driving block 11 is fixed; B5: the horizontal part of the center rod 28 is separated from the center hole 30, the first matching rod 19 is separated from the first matching groove 21 of the corresponding spacing ring, and the lifting frame 17 leaves the inside of the hydrogen peroxide equipment 1; B6: repeat steps B1-B5, install all new installation units 3 from the lower layer to the upper layer layer by layer until the replacement is completed; B7: close the inlet 4 of the hydrogen peroxide equipment 1 by the cover 34.
[0055] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A method for hoisting hydrogen peroxide equipment, characterized in that: The hydrogen peroxide equipment (1) is provided with a bottom support (2) and multiple installation units (3) stacked from top to bottom on the bottom support (2). The top of the hydrogen peroxide equipment (1) has an entrance (4) for the installation units (3) to enter. Each installation unit (3) includes a catalyst basket (301) and a spacer (302). The method includes the following steps: (A) Removing the old module layer by layer: Using a hoisting device (5), the old installation unit (3) is lifted out of the hydrogen peroxide equipment (1) layer by layer from the top to the bottom; (B) Installing new modules layer by layer: Using the hoisting device (5), the new installation unit (3) is hoisted into the hydrogen peroxide equipment (1) layer by layer from the bottom to the top and installed in place; wherein, the catalyst basket (301) in the new installation unit (3) has been pre-filled with catalyst outside the tower before hoisting.
2. The hoisting method for hydrogen peroxide equipment according to claim 1, characterized in that: Step (A) of lifting out the old installation unit (3) specifically includes: using the lifting device (5) to lift out the old catalyst basket (301) and the old spacer (302) from the hydrogen peroxide equipment (1); Step (B) involves installing the new installation unit (3) into place, specifically by using the hoisting device (5) to hoist the new catalyst basket (301) and the new spacer (302) into the hydrogen peroxide equipment (1) and install them into place.
3. The hoisting method for hydrogen peroxide equipment according to claim 1, characterized in that: The spacer (302) includes a spacer ring (6), on which a support plate (7) that can abut against the inner wall of the hydrogen peroxide equipment (1) is slidably connected; and the hoisting device (5) is provided with a first driving member for driving the support plate (7) to slide. In step (B), after the new installation unit (3) is hoisted into the hydrogen peroxide equipment (1), the first driving member drives the support plate (7) to slide until it abuts against the inner wall of the hydrogen peroxide equipment (1).
4. The hoisting method for hydrogen peroxide equipment according to claim 3, characterized in that: The support plates (7) are arranged in multiple intervals along the inner wall of the hydrogen peroxide equipment (1), and the multiple support plates (7) are covered with sealing elements (8) that can fit against the inner wall of the hydrogen peroxide equipment (1).
5. The hoisting method for hydrogen peroxide equipment according to claim 3, characterized in that: The hydrogen peroxide equipment (1) has a separation ring (9) that slides axially on its outer wall. The inner wall of the separation ring (9) has a first magnetic block. The support plate (7) has a second magnetic block on the side facing the inner wall of the hydrogen peroxide equipment (1). The first magnetic block and the second magnetic block repel each other magnetically. In step (A), when the old installation unit (3) needs to be lifted out, the separation ring (9) is slid along the outer wall of the equipment to the position corresponding to the support plate (7). The repulsive force generated between the first magnetic block and the second magnetic block drives the support plate (7) to slide inward, so that the support plate (7) is released from contact with the inner wall of the hydrogen peroxide equipment (1).
6. The hoisting method for hydrogen peroxide equipment according to claim 3, characterized in that: A drive seat (10) is provided on the spacer ring (6), and a drive block (11) is slidably connected inside the drive seat (10). The drive block (11) has a cross-section that gradually decreases from top to bottom. A positioning member for fixing the drive block (11) is provided on the drive seat (10). A push rod (12) is provided on the support plate (7). One end of the push rod (12) away from the support plate (7) passes through the drive seat (10) and slidably abuts against the inclined surface of the drive block (11). The first drive member is used to drive the drive block (11) to slide. In step (B), after the new installation unit (3) is hoisted into the hydrogen peroxide equipment (1), the first driving member drives the driving block (11) to slide axially, the inclined surface of the driving block (11) presses against the push rod (12), and drives the support plate (7) to slide outward until it abuts against the inner wall of the hydrogen peroxide equipment (1), and the position of the driving block (11) is locked by the positioning member.
7. A hoisting method for hydrogen peroxide equipment according to claim 6, characterized in that: The drive seat (10) has an annular cavity (13) inside. The hoisting device (5) is provided with a second drive member for driving the drive block (11) to rotate in the annular cavity (13). The positioning member includes an upper abutment plate (14) and a lower abutment plate (15) disposed in the annular cavity (13). The drive block (11) is provided with a fixing block (16) for abutting against the side of the upper abutment plate (14) away from the lower abutment plate (15). In step (B), when the drive block (11) slides to the bottom and abuts against the lower abutment plate (15), the second drive member drives the drive block (11) to rotate in the annular cavity (13), so that the fixed block (16) rotates to abut against the upper abutment plate (14).
8. A hoisting device for hydrogen peroxide equipment, applied in the hoisting method for hydrogen peroxide equipment as described in claim 3, characterized in that: The hoisting device (5) includes a hoisting frame (17), on which a lifting lug (18) is provided for docking with the hook of the crane (24); the hoisting frame (17) is provided with a plurality of first mating rods (19), and the inner wall of the spacer ring (6) is provided with a plurality of first mating blocks (20), each of the first mating blocks (20) is provided with a first mating groove (21), and the hoisting frame (17) is provided with a first power unit (22) for driving the plurality of first mating rods (19) to be inserted into a first mating groove (21) respectively.
9. A hoisting device for hydrogen peroxide equipment according to claim 8, characterized in that: The hoisting frame (17) is provided with a plurality of second mating rods (44), and the catalyst basket (301) is provided with a plurality of second mating blocks (42). Each second mating block (42) is provided with a second mating groove (43), and each second mating groove (43) can be used to insert a second mating rod (44). The hoisting frame (17) is provided with a second power unit (23) for driving the plurality of second mating rods (44) to be inserted into a second mating groove (43) respectively.
10. A hoisting device for hydrogen peroxide equipment according to claim 8, characterized in that: The first mating rod (19) is provided with a first sensing element for sensing the position of the first mating block (20), and the first power unit (22) is electrically connected to the first sensing element.