Quantitative filling tool suitable for gold-series mercury-free catalyst

Abstract

The utility model relates to a quantitative filling tool suitable for a gold-series mercury-free catalyst, and belongs to the technical field of catalyst filling. Comprising a rack and a plurality of filling units, and the filling units penetrate through the rack to be connected; the filling unit comprises a volume-adjustable cup, a drawing plugging element and an independent discharging guide pipe. The outer wall of the volume-adjustable cup is connected with the machine frame, the drawing plugging element abuts against the bottom of the volume-adjustable cup, the independent discharging guide pipe is arranged below the volume-adjustable cup, and the drawing plugging element is arranged between the independent discharging guide pipe and the volume-adjustable cup. The independent discharging guide pipe is communicated with the volume-adjustable cup through the drawing plugging element, and the independent discharging guide pipe can be inserted into a converter reaction pipe; and one end of the drawing plugging element is arranged in the rack. According to the mercury-free catalyst filling device, quantitative filling can be realized, the loss of a gold catalyst caused by secondary extraction in mercury-free catalyst filling is reduced, and the operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of catalyst filling, in particular to a quantitative filling tool suitable for gold-based mercury-free catalysts. Background Art

[0002] There are two major types of vinyl chloride synthesis technologies in the world, namely ethylene oxychlorination and acetylene hydrochlorination. Acetylene hydrochlorination is the earliest industrialized vinyl chloride production technology. The advantages of this method are simple process, high conversion rate and low investment, but the disadvantage is that the use of mercury-containing catalysts seriously endangers the health of workers and causes serious environmental pollution. According to relevant policy requirements, the calcium carbide polyvinyl chloride industry will gradually develop towards green mercury-free in the future, and mercury-free catalysts will fully replace the original mercury-containing catalysts.

[0003] When loading mercury-free catalysts, the reactor tube is generally filled to the maximum, and then a vacuum device is used to extract part of the catalyst to ensure that the catalyst is filled to the appropriate height. When loading traditional mercury-free catalysts, after opening the upper head of the converter, the converter tube sheet and the reaction tube leak out. The loading personnel hold 25kg / barrel of mercury-free catalysts and pour them onto the tube sheet one by one. The catalyst falls randomly into the reaction tube due to gravity until the reaction tube is full. In order to prevent the reaction tube from being missed during the random loading process, the loading personnel have to fill the reaction tube to facilitate visual inspection.

[0004] After the mercury-free catalyst is filled, the filling personnel use the vacuum device to extract a certain height of the catalyst, about 30 cm high, so that a part of the upper tube of the converter reaction tube is empty. This is mainly because the upper shell space of the converter is the gas phase space of the heat removal medium, and the heat exchange capacity is poor. Therefore, this section of the reaction tube is not suitable for loading mercury-free catalyst to prevent the heat from being removed in time and the temperature cannot be controlled, resulting in "temperature runaway". In addition, mercury-free catalyst is relatively expensive, and the catalyst is very likely to lose its activity after "temperature runaway", resulting in the scrapping of the catalyst.

[0005] After filling, use a sledgehammer to hit the special knocking points on the converter to prevent the catalyst from "bridging" during the filling process. After the catalyst tubes about 30 cm above the converter are evacuated, the filling personnel pour the activated carbon into the reaction tube to fill the reaction tube. The activated carbon does not have catalytic ability. Its main function is to cover the upper layer of the mercury-free catalyst, adsorb impurities in the raw gas, and play a certain protective role. After filling, cover the converter head and tighten it.

[0006] The disadvantages of this filling method are:

[0007] 1. After the catalyst is fully loaded, it is extracted by vacuum device, which wastes time.

[0008] 2. After the catalyst is fully loaded, it is extracted using a vacuum device, which increases the catalyst pulverization rate. For gold-based carbon-based mercury-free catalysts, expensive components such as gold chloride are adsorbed on the activated carbon. Each extraction will cause wear and pulverization, which will be scattered by the wind and cause losses. Utility Model Content

[0009] In view of the deficiencies in the prior art, the utility model provides a quantitative filling tool for gold-based mercury-free catalysts. The technical problem to be solved is how to achieve quantitative filling, reduce the loss of gold-based catalysts caused by secondary extraction during mercury-free catalyst filling, and simplify operation.

[0010] To achieve the above-mentioned purpose, the utility model provides a quantitative filling tool for gold-based mercury-free catalyst, comprising a frame and a plurality of filling units, wherein the filling units penetrate the frame and are connected; the filling units comprise an adjustable volume cup, a pull-out plugging element and an independent material discharge conduit;

[0011] The outer wall of the adjustable volume cup is connected to the frame, the pull-out plugging element is against the bottom of the adjustable volume cup, the independent feed conduit is arranged below the adjustable volume cup, the pull-out plugging element is arranged between the independent feed conduit and the adjustable volume cup, the independent feed conduit is connected to the adjustable volume cup through the pull-out plugging element, and the independent feed conduit can be inserted into the converter reaction tube; one end of the pull-out plugging element is arranged inside the frame.

[0012] Furthermore, the adjustable volume cup includes an inner sleeve and an outer sleeve, and the inner sleeve and the outer sleeve are movably connected; the frame includes a frame plate, and the frame plate is movably connected to the outer wall of the inner sleeve.

[0013] Furthermore, the inner sleeve and the outer sleeve are threadedly connected, and a volume scale is engraved on the inner side of the inner sleeve.

[0014] Furthermore, the frame also includes legs, and the legs are vertically fixedly connected to both ends of the frame plate.

[0015] Furthermore, a universal wheel is provided at the bottom of the supporting leg.

[0016] Furthermore, the pull-out sealing element is provided with a plurality of holes, the diameter of the holes is the same as the inner diameter of the adjustable volume cup; there is a spacing between the plurality of holes, there is a spacing between the plurality of adjustable volume cups, and the spacing between the holes is the same as the spacing between the inner sleeves.

[0017] Furthermore, the frame plate comprises an upper frame plate, an interlayer and a lower frame plate, wherein the interlayer is arranged between the upper frame plate and the lower frame plate; a track is arranged in the interlayer, and the pull-out blocking element can move along the track in the interlayer.

[0018] Furthermore, the track is made of rubber.

[0019] Furthermore, the upper frame plate is threadedly connected to the outer wall of the inner sleeve.

[0020] Furthermore, the lower frame plate is fixedly connected to the outer wall of the independent material discharge conduit.

[0021] Furthermore, the frame and the adjustable volume cup are both made of stainless steel.

[0022] The beneficial technical effects achieved by the utility model are as follows: by threading the inner sleeve and the outer sleeve of the adjustable volume cup, the outer sleeve is rotated to adjust the volume, so that the mercury-free catalyst can be loaded to the specified height of the converter reaction tube at one time without secondary extraction, which can effectively reduce the loading time; there is no need to use a vacuum device to extract the catalyst, which can effectively reduce the wear of the activated carbon-based mercury-free catalyst and reduce pulverization. For expensive gold-based carbon-based mercury-free catalysts, the loss reduction is very obvious; the principle and operation method of the filling tool are simple, without complex structure, and maintenance and replacement are also simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a quantitative filling tool suitable for gold-based mercury-free catalysts of the utility model;

[0024] Figure 2 It is a longitudinal cross-sectional view of a filling unit suitable for a quantitative filling tool of a gold-based mercury-free catalyst according to the utility model;

[0025] Figure 3 This is a top view of a quantitative filling tool for gold-based mercury-free catalysts according to the utility model;

[0026] Reference figures: 1, frame; 2, adjustable volume cup; 2-1, inner sleeve; 2-2, outer sleeve; 3, pull-out plugging element; 4, independent discharge conduit; 5, frame plate; 5-1, upper frame plate; 5-2, lower frame plate; 6, track; 7, leg; 8, hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below with reference to the accompanying drawings, which is suitable for quantitative filling of gold-based mercury-free catalysts.

[0032] Embodiment 1:

[0033] The utility model provides a quantitative filling tool suitable for gold-based mercury-free catalysts, comprising a frame 1 and a plurality of filling units, wherein the filling units penetrate the frame 1 and are connected; the filling units comprise an adjustable volume cup 2, a pull-out plugging element 3 and an independent material discharge conduit 4;

[0034] The outer wall of the adjustable volume cup 2 is connected to the frame 1, the pull-out plugging element 3 is against the bottom of the adjustable volume cup 2, the independent discharge conduit 4 is arranged below the adjustable volume cup 2, the pull-out plugging element 3 is arranged between the independent discharge conduit 4 and the adjustable volume cup 2, the independent discharge conduit 4 is connected to the adjustable volume cup 2 through the pull-out plugging element 3, and the independent discharge conduit 4 can be inserted into the converter reaction tube; one end of the pull-out plugging element 3 is arranged inside the frame 1.

[0035] Embodiment 2:

[0036] The utility model provides a quantitative filling tool suitable for gold-based mercury-free catalysts, comprising a frame 1 and a plurality of filling units, wherein the filling units penetrate the frame 1 and are connected; the filling units comprise an adjustable volume cup 2, a pull-out plugging element 3 and an independent material discharge conduit 4;

[0037] The outer wall of the adjustable volume cup 2 is connected to the frame 1, the pull-out plugging element 3 is against the bottom of the adjustable volume cup 2, the independent discharge conduit 4 is arranged below the adjustable volume cup 2, the pull-out plugging element 3 is arranged between the independent discharge conduit 4 and the adjustable volume cup 2, the independent discharge conduit 4 is connected to the adjustable volume cup 2 through the pull-out plugging element 3, and the independent discharge conduit 4 can be inserted into the converter reaction tube; one end of the pull-out plugging element 3 is arranged inside the frame 1.

[0038] The difference between this embodiment and embodiment 1 is that:

[0039] like Figures 1 to 3 As shown, the adjustable volume cup 2 includes an inner sleeve 2-1 and an outer sleeve 2-2, and the inner sleeve 2-1 and the outer sleeve 2-2 are movably connected; the frame 1 includes a frame plate 5, and the frame plate 5 is movably connected to the outer wall of the inner sleeve 2-1; the inner sleeve 2-1 and the outer sleeve 2-2 are threadedly connected, and the inner side of the inner sleeve 2-1 is engraved with a volume scale, and the volume of the adjustable volume cup 2 can be adjusted by rotating the outer sleeve 2-2;

[0040] The frame also includes legs 7, which are vertically fixedly connected to both ends of the frame plate 5, and the bottom of the legs 7 is provided with lockable universal wheels for fixing and pushing and pulling;

[0041] The frame plate 5 includes an upper frame plate 5-1, an interlayer and a lower frame plate 5-2, wherein the interlayer is arranged between the upper frame plate 5-1 and the lower frame plate 5-2; a track 6 is arranged in the interlayer, and the pull-out plugging element 3 can move along the track 6 in the interlayer, and the track 6 is made of rubber; because the track 6 is made of rubber, there is friction resistance between the pull-out plugging element 3, so when the adjustable volume cup 2 is used to store mercury-free catalyst, the track 6 is used to fix the pull-out plugging element 3, so that the plugging element 3 plugs the bottom of the adjustable volume cup 2 to store mercury-free catalyst; the pull-out plugging element 3 is provided with multiple holes 8, the diameter of the holes 8 is the same as the inner diameter of the adjustable volume cup 2, there is a spacing between the multiple holes 8, there is a spacing between the multiple adjustable volume cups 2, the adjustable volume cup 2 includes an inner sleeve 2-1 and an outer sleeve 2-2, the spacing between the holes 8 is the same as the spacing between the inner sleeves 2-1; when the mercury-free catalyst needs to be lowered, the pull-out plugging element 3 is pulled out, so that the hole on the pull-out plugging element 3 is located directly below the adjustable volume cup 2, so that the adjustable volume cup 2 is connected with the independent discharge conduit 4, the mercury-free catalyst can be released, and the mercury-free catalyst in the adjustable volume cup 2 can be lowered into the independent discharge conduit 4;

[0042] The upper frame plate 5-1 is threadedly connected to the outer wall of the inner sleeve 2-1, which facilitates the disassembly of the adjustable volume cup 2; the lower frame plate 5-2 is fixedly connected to the outer wall of the independent material discharge conduit 4, and the independent material discharge conduit 4 can be a hose;

[0043] The frame 1 and the adjustable volume cup 2 are both made of thin stainless materials such as stainless steel. Firstly, the tools can be kept lightweight and convenient for operators to use; secondly, the anti-corrosion materials can keep the tools clean, tidy and beautiful.

[0044] The utility model is a quantitative filling tool suitable for gold-based mercury-free catalysts, and its working process is as follows: when it is necessary to fill the converter reaction tube with mercury-free catalysts, the filling tool is pushed and pulled to the filling position and fixed, and the independent material discharge conduit 4 is inserted into the converter reaction tube, and the volume of the reaction tube at the required filling height is first tested, and then the volume of the volumetric cup 2 is adjusted accordingly by rotating the outer sleeve 2-2, at which time the bottom of the adjustable volumetric cup 2 is blocked by a blocking element 3, and the adjustable volumetric cup 2 is used to store the mercury-free catalyst, and the mercury-free catalyst is added to the adjustable volumetric cup 2; when it is necessary to lower the mercury-free catalyst, the blocking element 3 is drawn out, so that the adjustable volumetric cup 2 is connected with the independent material discharge conduit 4 through the hole on the blocking element 3, so that the mercury-free catalyst in the volumetric cup 2 is released into the reaction tube through the independent material discharge conduit 4, and the one-time filling of the mercury-free catalyst is completed.

[0045] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A quantitative filling tool for gold-based mercury-free catalyst, characterized in that: It comprises a frame and a plurality of filling units, wherein the filling units penetrate through the frame and are connected; the filling units comprise an adjustable volume cup, a pull-out plugging element and an independent material discharge conduit; The outer wall of the adjustable volume cup is connected to the frame, the pull-out plugging element is against the bottom of the adjustable volume cup, the independent feed conduit is arranged below the adjustable volume cup, the pull-out plugging element is arranged between the independent feed conduit and the adjustable volume cup, the independent feed conduit is connected to the adjustable volume cup through the pull-out plugging element, and the independent feed conduit can be inserted into the converter reaction tube; one end of the pull-out plugging element is arranged inside the frame.

2. The quantitative filling tool for gold-based mercury-free catalyst according to claim 1, characterized in that: The adjustable volume cup comprises an inner sleeve and an outer sleeve, and the inner sleeve and the outer sleeve are movably connected; the frame comprises a frame plate, and the frame plate is movably connected to the outer wall of the inner sleeve.

3. The quantitative filling tool for gold-based mercury-free catalyst according to claim 2, characterized in that: The inner sleeve is threadedly connected to the outer sleeve, and volume scales are engraved on the inner side of the inner sleeve.

4. The quantitative filling tool for gold-based mercury-free catalyst according to claim 2, characterized in that: The frame also includes legs, and the legs are vertically fixedly connected to both ends of the frame plate; universal wheels are arranged at the bottom of the legs.

5. The quantitative filling tool for gold-based mercury-free catalyst according to claim 2, characterized in that: The pull-out plugging element is provided with a plurality of holes, the diameter of the holes is the same as the inner diameter of the adjustable volume cup; there is a spacing between the plurality of holes, there is a spacing between the plurality of adjustable volume cups, and the spacing between the holes is the same as the spacing between the inner sleeves.

6. The quantitative filling tool for gold-based mercury-free catalyst according to claim 2, characterized in that: The frame plate comprises an upper frame plate, an interlayer and a lower frame plate, wherein the interlayer is arranged between the upper frame plate and the lower frame plate; a track is arranged in the interlayer, and the pull-out plugging element can move along the track in the interlayer.

7. The quantitative filling tool for gold-based mercury-free catalyst according to claim 6, characterized in that: The track is made of rubber.

8. The quantitative filling tool for gold-based mercury-free catalyst according to claim 6, characterized in that: The upper frame plate is threadedly connected to the outer wall of the inner sleeve.

9. The quantitative filling tool for gold-based mercury-free catalyst according to claim 6, characterized in that: The lower frame plate is fixedly connected to the outer wall of the independent material discharge conduit.

10. The quantitative filling tool for gold-based mercury-free catalyst according to claim 1, characterized in that: The frame and the adjustable volume cup are both made of stainless steel.

Images