CN211098936U - Continuous catalyst/molecular sieve filling device - Google Patents
Continuous catalyst/molecular sieve filling device Download PDFInfo
- Publication number
- CN211098936U CN211098936U CN201921922817.9U CN201921922817U CN211098936U CN 211098936 U CN211098936 U CN 211098936U CN 201921922817 U CN201921922817 U CN 201921922817U CN 211098936 U CN211098936 U CN 211098936U
- Authority
- CN
- China
- Prior art keywords
- detachable
- hopper
- hose
- pipe
- molecular sieve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The utility model discloses a continuous type catalyst/molecular sieve filling device, including the ground hopper, conveyer, top hopper and distributed branch pipe, conveyer carries the material to the top hopper from the ground hopper, distributed branch pipe includes the house steward, locate many distribution nozzle stub of house steward below and connect gradually the first hose of distribution nozzle stub, detachable pipe chute and roll over the pipe, detachable pipe chute can adjust length as required, house steward connects the top hopper, roll over the pipe and connect the second hose, the outer wall of distributed branch pipe is equipped with the constant head tank, the second hose evenly cuts into many banding hose strips along its length direction except the bottom, the first end of hose strip passes the constant head tank and stretches out the tank deck of reactor and detachably fixes, detachable pipe chute connection has the chain; the chain is put down, and the distributed branch pipes are folded inwards and can be arranged in the tank body; and stretching the chain to expand the chain outwards in a distributed manner to a position close to the wall of the tank, and simultaneously extending the second end of the second hose to the bottom of the reactor.
Description
Technical Field
The utility model relates to a catalyst loads technical field, especially relates to a continuous type catalyst/molecular sieve loading device.
Background
In the chemical industry, the filling operation of catalysts and molecular sieves is generally performed after preparation works such as the laying of internal parts of bottom supports and protective screens of reactors and dryers/processors, marking of walls of the reactors and the like are completed. Bottom filling requires an operator wearing a closed whole-body protective garment to put in a tank for operation, and then a crane is used for filling a ton of bagged porcelain balls into the tank along a soft rubber water pipe from a hopper (a straight pipe at the bottom of the hopper is connected with the soft rubber water pipe and is arranged to the bottom of the tank all the time) with a switch at the bottom. The workers in the tank need to hold the water pipe to uniformly spread the porcelain balls into the tank. After the bottom ceramic balls are laid to the pre-made mark positions, the discharge holes are sealed, and the catalyst or the molecular sieve is filled. The loading process of the catalyst or the molecular sieve is the same as that of a porcelain ball at the bottom, the catalyst/molecular sieve one-ton bag is hung to the top of the tank by a crane, an operator at the top of the tank closes a hopper switch, other two operators loosen a binding rope at the bottom of the ton bag, all the catalyst/molecular sieve in the ton bag leaks into the hopper, the operator opens the hopper switch again to move the catalyst/molecular sieve forward into the tank, and the operator in the tank needs to hold a water pipe to evenly load and lay the catalyst/molecular sieve. Generally, every 1 m is filled, an operator in the tank can lay flat, and then the operator at the top puts in a hanging ruler to measure the actual filling height in the tank. Until the reactor/dryer/processor bed is full to the pre-established mark. After the catalyst/molecular sieve filling is finished, the top ceramic ball is filled according to the method until the mark of the tank top is formed, the top ceramic ball is paved and recorded, and the filling operation is finished.
The filling mode has the following defects that ① has high requirements on weather conditions, the filling mode is not suitable for filling in rainy, snowy and windy weather, ② catalyst/molecular sieve has large dust filling amount and serious environmental pollution, ③ intermittent operation has inaccurate control on opening and closing of the bottom of a hopper, the filling is uneven, the filling density of each ton of bag is greatly different, the hopper needs to be taken up after a certain amount of filling is carried out, a rubber water pipe connected with the bottom is taken out and a part of the rubber water pipe is removed, ④ cannot control the filling density of the whole bed range, operators in ⑤ tanks need to stay in the tanks all the time before people are changed, the operation risk is high, ⑥ intermittent operation has low efficiency and low operation speed, ⑦ filling operation (closed space) and lifting operation are carried out simultaneously, the operation belongs to cross operation, the safety risk is high, and ⑧ lifting operation needs an additional crane, so that the operation cost is increased.
SUMMERY OF THE UTILITY MODEL
The shortcoming to traditional catalyst molecular sieve filling mode, the utility model aims at providing a continuous type catalyst molecular sieve filling device, realize filling in succession of catalyst molecular sieve through detachable airtight conveyer belt and tank deck closed hopper, design benefit need not to hoist and mount the operation, and accessible debugging control loads speed, degree of automation is high, the controllability is strong, the operation is stable, and environmental pollution greatly reduced, it is poor to aim at solving the weather nature adaptation of traditional catalyst filling mode, it can't guarantee to load density, environmental pollution is heavy and the higher scheduling problem of operation risk.
To the above problem, the utility model discloses a technical scheme be: the utility model provides a continuous type catalyst/molecular sieve filling device, includes ground hopper, conveyer, top hopper and distributed branch pipe, conveyer connects ground hopper and top hopper and realizes the transport of material from ground hopper to top hopper, distributed branch pipe includes house steward, evenly locates many distribution nozzle stub of house steward below according to 360 degrees and connects gradually the first hose, detachable pipe chute and the pipe of distributing nozzle stub, detachable pipe chute can adjust its length as required, house steward connects the exit end of top hopper, the pipe of rolling over connects the second hose, the outer wall of distributed branch pipe is equipped with the constant head tank, the second hose evenly cuts into many banding hose strips along its length direction except that the bottom, the first end of hose strip passes the constant head tank stretches out the tank top of reactor and detachably fixes, the detachable inclined tube is connected with a chain; when the chain is put down, the distributed branch pipes are inwardly folded and can be arranged in the tank body of the reactor from the manhole; when the chain is stretched, the distributed branch pipe is outwards opened to a position close to the tank wall, and meanwhile, the second end of the second hose is extended to the bottom of the reactor;
the outlet end of the ground hopper is provided with a first controllable control valve, and the outlet end of the top hopper is provided with a second controllable control valve.
Preferably, the pipe folding part comprises an inclined pipe section and a straight pipe section, the inclined pipe section is connected with a detachable inclined pipe, and the straight pipe section is connected with a second hose.
Preferably, the positioning grooves respectively comprise a first positioning groove arranged on the outer wall of the detachable inclined tube, a second positioning groove arranged on the outer wall of the inclined tube section of the folded tube and a third positioning groove arranged on the outer wall of the straight tube section of the folded tube, and the first end of the hose strip sequentially penetrates through the first positioning groove, the second positioning groove and the third positioning groove to extend out of the tank top of the reactor and be detachably fixed.
Preferably, conveyer is detachable airtight conveyer belt, including detachable conveyer belt, conveying motor, integral type dust cover and bottom receiving tank, detachable conveyer belt is sectional package assembly, can adjust its length through the number of sections that increase or reduce the conveyer belt, be provided with a plurality of little hoppers along its direction of delivery on the detachable conveyer belt, the integral type dust cover is located be used for realizing the closed of material and carry on the detachable conveyer belt, the initiating terminal of detachable conveyer belt is located to the bottom receiving tank, conveyer's bottom sets up the recovery passageway, recovery passageway intercommunication bottom receiving tank.
Preferably, the detachable inclined tube is of a sectional type assembly structure, the length of the detachable inclined tube can be adjusted by increasing or reducing the number of sections of the inclined tube, and the top of the outer wall of each section of the inclined tube is provided with a small inclined tube hanging ring.
Preferably, the top hopper is of a closed structure.
Preferably, the first controllable control valve is a controllable slide valve, and the speed of the material in the ground hopper falling into the conveying device can be freely adjusted by adjusting the opening degree of the controllable slide valve.
Preferably, one side of the top hopper is provided with a notch, and the discharge end of the detachable conveyor belt is placed in the notch of the top hopper through connecting rods at two sides.
Preferably, the first end of the hose strip is in transmission connection with a lifting device, and the hose strip is driven by the lifting device to lift towards the tank top at a set speed.
The utility model has the advantages that: 1. in the process of conveying the catalyst/molecular sieve by the detachable conveying belt, the conveying belt is provided with the integrated dust cover, so that no environmental pollution is caused in the conveying process; 2. the top of the detachable conveying belt is placed to the hopper at the top of the tank, and the hopper at the top is closed, so that the problems of environment pollution and the like caused by huge dust and the like due to the fact that the catalyst/molecular sieve is poured to the hopper in the hoisting process in the traditional open type top hopper are solved; 3. the detachable conveyor belt and the top hopper are of closed structures, so that rain, snow and wind can be prevented from entering the hopper, and the environment adaptability is high; 4. the filling flow of the catalyst/molecular sieve can be controlled by adjusting the valve opening of the ground hopper according to the calculated filling density, so that the required filling density can be accurately obtained; 5. the filling mode is continuous filling, the filling speed is fixed, the filling density is uniform, and the problem of large difference of filling density of filling each ton of bags and each meter in the traditional method is solved; 6. the distributed branch pipes are connected with the detachable inclined pipes, the inclined pipes can be extended or shortened according to the diameter of the tank, the filling uniformity of the catalyst/molecular sieve can be fully ensured, and the problem of different filling densities in the middle and around the tank caused by filling of a soft rubber water pipe in the traditional filling mode is solved; 7. the distributed branch pipes are designed in a foldable mode, the manhole is small in size and can be contracted to enter, the branch pipes with large tank diameters are expanded after entering, and the problems of tank entering and taking out of the branch pipes are well solved; 8. after a certain period of filling, the lower part of the water pipe can be ensured to be always positioned at the upper part of the catalyst/molecular sieve by stretching and cutting the tank top into a plurality of equally-divided hose strips, so that the problem that the water pipe connected below the hopper needs to be pulled out and a part of the water pipe needs to be cut off after a period of traditional filling is avoided; 9. because the utility model has good loading uniformity, the filling operators can fill the bottom ceramic balls, the bed catalyst/molecular sieve and the top ceramic balls respectively, thereby greatly reducing the time of filling the tank, reducing the labor intensity and greatly reducing the risk of operation in a closed space; 10. because the utility model does not need hoisting operation, only relates to closed space operation, and reduces the risk of traditional loading cross operation; meanwhile, the hoisting cost is saved. In addition, the device has the advantages of continuous operation, high efficiency, controllable speed, less operators, small operation radius and the like.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
fig. 2 is a schematic structural diagram of the distributed branch pipe in fig. 1.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1 to 2, an embodiment of the present invention includes:
the utility model provides a continuous type catalyst filling device, includes ground hopper 1, detachable close conveyer belt, top hopper 5 and distributed branch 6, detachable close conveyer belt connects ground hopper 1 and top hopper 5 and realizes that the catalyst is from ground hopper 1 to top hopper 5's transport.
Detachable airtight conveyer belt includes detachable conveyer belt 3, conveying motor 2, integral type dust cover 4 and bottom receiving groove 10, detachable conveyer belt 3 is sectional package assembly, can adjust its length through the festival number that increases or reduces the conveyer belt, all is provided with three little hopper 24 along its direction of delivery on every section conveyer belt, and integral type dust cover 4 is located detachable conveyer belt 3's top is used for realizing the closed of catalyst and carries, and the initiating terminal of detachable conveyer belt 3 is located to bottom receiving groove 10, and the bottom of integral type dust cover 4 sets up recovery channel 25, recovery channel 25 intercommunication bottom receiving groove 10.
Distributed branch pipe 6 includes house steward 11, evenly locates according to 360 degrees three distribution nozzle stub 12 of house steward 11 below and connect gradually hose 13, detachable pipe chute 14 and a pipe 15 of distributing nozzle stub 12, house steward 11 passes through the exit end that bolt 18 and nut 19 connect top hopper 5, pipe 15 includes pipe chute section and straight tube section, detachable pipe chute 14 is connected to the pipe chute section soft rubber water pipe 7 is connected to the straight tube section, detachable pipe chute 14's outer wall sets up first constant head tank 16, the pipe chute section outer wall that rolls over 15 sets up second constant head tank 22, the straight tube section outer wall that rolls over 15 sets up third constant head tank 23, soft rubber water pipe 7 evenly cuts into three banding hose strips along its length direction except 20cm of bottom, the upper end of hose strip passes in proper order third constant head tank 23, second constant head tank 22 and first constant head tank 16 stretch to the hopper top 5's department and are fixed in the hopper top hopper lug 5, the detachable inclined tube 14 is of a sectional type assembly structure, the length of the detachable inclined tube can be adjusted by increasing or reducing the number of sections of the inclined tube, an inclined tube small hanging ring 17 is arranged at the top of the outer wall of each section of the inclined tube, and the inclined tube small hanging rings 17 at the top of the detachable inclined tube 14 are respectively led out to the tank top of the reactor 20 by chains 9. The chain 9 is put down, and the distributed branch pipes 6 are gathered and can enter the tank body of the reactor 20 from the manhole 21; the chain 9 is stretched, the hose 13 is kept in a natural straightening state, and the distributed branch pipe 6 is opened, so that the bent pipe 15 can be closer to the position of the tank wall, and the bottom end of the soft rubber water pipe 7 extends to the bottom of the reactor 20.
The outlet end of the ground hopper 1 is positioned above the starting end of the detachable closed conveying belt 3, the outlet end of the ground hopper 1 is provided with a first controllable slide valve 8, and the speed of the catalyst in the ground hopper 1 entering the detachable closed conveying belt 3 can be freely adjusted by adjusting the opening degree of the first controllable slide valve; the top hopper 5 is of a closed structure, and the outlet end of the top hopper is provided with a second controllable slide valve.
The catalyst is filled into the tank of the reactor 20 through a ground hopper 1, a detachable closed conveyor belt 3, a top hopper 5, a distributed branch pipe 6 and a soft rubber water pipe 7 connected with the branch pipe in sequence.
The filling technician knows the designed filling density of the reactor, calculates the conveying flow of the detachable closed conveying belt 3 by adjusting the opening of the first controllable slide valve 8 at the outlet end of the ground hopper 1 according to the rotating speed of the conveying motor 2, and obtains the required filling density of the reactor 20 by controlling the second controllable slide valve at the outlet end of the top hopper 5.
The detachable closed conveying belt is assembled in a sectional mode, the length of the conveying belt can be lengthened or shortened according to the ground heights of different reactors, and the inclination angle between the conveying belt and the top hopper 5 can be adjusted according to the requirement.
One side of the top hopper 5 is provided with a notch, and the outlet end of the detachable conveyor belt 3 is placed in the notch of the top hopper 5 through connecting rods at two sides.
The specific implementation manner of this embodiment is: a canopy is set up in advance to seal the forklift operation area including a catalyst to be filled, a ground hopper 1, a bottom receiving tank 10, a conveying motor 2 and the like.
A scaffold is previously erected on the top of the reactor 20 to be filled, and a manual or electric hoist is fixed. The distributed branch pipes 6 are arranged below the top hopper 5 by pulling the lifting lugs of the gourd through the top hopper 5, the distributed branch pipes 6 are placed into a tank body of the reactor 20 through the manhole 21, and after the top hopper 5 is installed, the chains 9 connected with the distributed branch pipes 6 are pulled up to ensure that the distributed branch pipes 6 extend and are directly propped open in the tank body of the reactor 20, and the lower ends of the soft rubber water pipes 7 extend to the bottom of the tank.
After the detachable closed conveying belt is assembled, a supporting connecting rod of a top guide wheel of the conveying belt is placed in a notch on one side of the top hopper 5 by a hoist and fixed.
The whole filling process is as follows:
1. the forklift lifts the ton bag filled with the catalyst in advance into the ground hopper 1, after an operator closes the first controllable slide valve 8, the other operator unlocks a rope at the bottom of the ton bag, and the catalyst in the ton bag is filled into the ground hopper 1;
2. starting the transmission motor 2, and starting transmission of the detachable transmission belt 3; the operator opens the first controllable slide valve 8 to the position according to the valve opening degree which is adjusted in advance;
3. a small hopper 24 in the detachable closed conveyor belt starts to receive the catalyst and conveys the catalyst to a top hopper 5 through a detachable conveyor belt 3;
4. the operator opens the second controllable slide valve at the outlet end of the top hopper 5 to the calculated opening, the catalyst in the top hopper 5 is uniformly filled into the tank body of the reactor 20 through the distributed branch pipe 6 and the longitudinally-cut soft rubber water pipe 7 connected with the distributed branch pipe, and the bottom end of the soft rubber water pipe 7 is 1.2 meters away from the support member at the tank bottom;
5. after the catalyst in the detachable closed conveying belt is dumped into the top hopper 5, the catalyst which is not dumped completely flows into the bottom receiving groove 10 along the recovery channel 25 at the bottom of the integrated dust cover 4, so that the filling loss is avoided;
6. the filling level can be obtained by calculating the time at a known adjusted catalyst flow rate. After filling 1 meter, the tank top operator pulls up three water pipe strips, which are cut into three pieces by each soft rubber water pipe 7 fixed at a lifting lug of the top hopper 5, for 1 meter and then fixes the water pipe strips;
7. after filling, the ground operator closes the first controllable slide valve 8, and after all the porcelain balls or catalysts in the detachable closed conveying belt are conveyed to the top hopper 5, the conveying motor 2 is closed, the device is detached, and the residual catalysts in the top hopper 5 are collected into the bottom recovery tank 10 to be processed together.
The utility model discloses an in another embodiment, can connect automatic lifting device with the water pipe strip of 7 upper ends of soft rubber water pipe, automatic lifting device is according to the speed ascending water pipe strip of setting for, and the lifting speed of water pipe strip can calculate according to the loading speed of catalyst and reachs, can realize that the full automatization of catalyst loads, further hoisting device's loading efficiency, loading precision and degree of automation.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. A continuous catalyst/molecular sieve filling device is characterized by comprising a ground hopper, a conveying device, a top hopper and distributed branch pipes, wherein the conveying device is connected with the ground hopper and the top hopper to convey materials from the ground hopper to the top hopper, each distributed branch pipe comprises a main pipe, a plurality of distribution short pipes uniformly arranged below the main pipe according to 360 degrees, and a first hose, a detachable inclined pipe and a folded pipe which are sequentially connected with the distribution short pipes, the length of each detachable inclined pipe can be adjusted according to needs, the main pipe is connected with the outlet end of the top hopper, the folded pipe is connected with a second hose, positioning grooves are formed in the outer walls of the distributed branch pipes, the second hose is uniformly cut into a plurality of strip-shaped hose strips along the length direction except the bottom end, the first ends of the hose strips penetrate through the positioning grooves and extend out of the tank top of a reactor and are detachably fixed, the detachable inclined tube is connected with a chain; when the chain is put down, the distributed branch pipes are inwardly folded and can be arranged in the tank body of the reactor from the manhole; when the chain is stretched, the distributed branch pipe is outwards opened to a position close to the tank wall, and meanwhile, the second end of the second hose is extended to the bottom of the reactor;
the outlet end of the ground hopper is provided with a first controllable control valve, and the outlet end of the top hopper is provided with a second controllable control valve.
2. The continuous catalyst/molecular sieve loading device of claim 1, wherein the folded tube comprises an inclined tube section and a straight tube section, the inclined tube section is connected with a detachable inclined tube, and the straight tube section is connected with a second hose.
3. The continuous catalyst/molecular sieve loading device of claim 1, wherein the positioning grooves respectively comprise a first positioning groove formed in the outer wall of the detachable inclined tube, a second positioning groove formed in the outer wall of the inclined tube section of the folded tube, and a third positioning groove formed in the outer wall of the straight tube section of the folded tube, and the first end of the hose strip sequentially passes through the first positioning groove, the second positioning groove, and the third positioning groove, extends out of the top of the reactor, and is detachably fixed.
4. The continuous catalyst/molecular sieve filling device of claim 1, wherein the conveyor is a detachable closed conveyor belt comprising a detachable conveyor belt, a conveyor motor, an integrated dust cover, and a bottom receiving slot, the detachable conveyor belt is a segmented assembly structure, the length of the detachable conveyor belt can be adjusted by increasing or decreasing the number of segments of the conveyor belt, the detachable conveyor belt is provided with a plurality of small hoppers along the conveying direction thereof, the integrated dust cover is disposed on the detachable conveyor belt for realizing closed conveying of materials, the bottom receiving slot is disposed at the starting end of the detachable conveyor belt, the bottom of the conveyor belt is provided with a recycling channel, and the recycling channel is communicated with the bottom receiving slot.
5. The continuous catalyst/molecular sieve loading device of claim 1, wherein the detachable inclined tube is a segmented assembly structure, the length of the detachable inclined tube can be adjusted by increasing or decreasing the number of segments of the inclined tube, and the top of the outer wall of each segment of the inclined tube is provided with a small inclined tube hanging ring.
6. A continuous catalyst/molecular sieve loading apparatus as claimed in claim 1, wherein the top hopper is of closed configuration.
7. The continuous catalyst/molecular sieve loading apparatus of claim 1, wherein the first controllable valve is a controllable slide valve, and the opening of the valve is adjustable to freely adjust the speed of the material in the ground hopper to be loaded into the conveyer.
8. The continuous catalyst/molecular sieve loading device of claim 4, wherein a slot is formed on one side of the top hopper, and the discharge end of the detachable conveyor belt is placed in the slot of the top hopper through two side connecting rods.
9. The continuous catalyst/molecular sieve loading apparatus of claim 1, wherein the first end of the hose strip is drivingly connected to a lifting device, and the hose strip is driven by the lifting device to lift at a set speed in the direction of the top of the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921922817.9U CN211098936U (en) | 2019-11-08 | 2019-11-08 | Continuous catalyst/molecular sieve filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921922817.9U CN211098936U (en) | 2019-11-08 | 2019-11-08 | Continuous catalyst/molecular sieve filling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211098936U true CN211098936U (en) | 2020-07-28 |
Family
ID=71711702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921922817.9U Active CN211098936U (en) | 2019-11-08 | 2019-11-08 | Continuous catalyst/molecular sieve filling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211098936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665440A (en) * | 2019-11-08 | 2020-01-10 | 宁波富德能源有限公司 | Continuous catalyst/molecular sieve filling device |
| CN112121592A (en) * | 2020-09-06 | 2020-12-25 | 安徽昊源化工集团有限公司 | Method for conveniently filling adsorbent in large-scale air separation horizontal molecular sieve adsorber |
-
2019
- 2019-11-08 CN CN201921922817.9U patent/CN211098936U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665440A (en) * | 2019-11-08 | 2020-01-10 | 宁波富德能源有限公司 | Continuous catalyst/molecular sieve filling device |
| CN112121592A (en) * | 2020-09-06 | 2020-12-25 | 安徽昊源化工集团有限公司 | Method for conveniently filling adsorbent in large-scale air separation horizontal molecular sieve adsorber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211098936U (en) | Continuous catalyst/molecular sieve filling device | |
| CN101338562B (en) | Concrete conveying process for high steep and big drop height landform | |
| CN213769254U (en) | Full-automatic ton bag packaging machine | |
| CN110665440A (en) | Continuous catalyst/molecular sieve filling device | |
| CN114960776A (en) | Anti-scouring protection construction method for large-diameter single-pile foundation | |
| CN106943910A (en) | Fertilizer compounding machine | |
| CN208392303U (en) | Concrete distributing device | |
| CN106638608A (en) | Blanking-height-adjustable hopper structure and construction method thereof | |
| CN104071994B (en) | Environment-friendly and energy-saving lime kiln | |
| CN206692228U (en) | A kind of construction lifting machine | |
| CN216342231U (en) | Simple platform for installing tunnel lining structure | |
| CN108901459A (en) | Plant raw wall virescence fabric and suspension lifting formula vertical greening device and its application method | |
| CN216272046U (en) | Calcium hypochlorite raw and other materials feeding bag and feedway | |
| CN214033719U (en) | Concrete pouring chute in deep foundation pit | |
| CN212027147U (en) | High casting pouring device for steel pipe column | |
| CN107983102A (en) | FLNG dehydration device molecular sieve packing methods | |
| CN208691828U (en) | Plant raw wall virescence fabric and suspension lifting formula vertical greening device | |
| CN110356953B (en) | Lifting appliance capable of automatically and synchronously unhooking in air | |
| CN210369619U (en) | Slope roof concrete curing device | |
| CN206778218U (en) | Fertilizer compounding machine | |
| CN207554082U (en) | Truss formula inverted arch constructing tunnel formwork hoisting erecting device | |
| CN106731943B (en) | Fertilizer distributor | |
| CN219296959U (en) | Building construction platform of unloading | |
| CN205272346U (en) | Concrete mixing plant | |
| CN206000146U (en) | Mobile operating platform installed by a kind of rack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |