Glass discharging bottom valve and glass reaction kettle

Abstract

The utility model belongs to the technical field of chemical equipment, and particularly relates to a glass discharging bottom valve and a glass reaction kettle, which comprise a glass valve casing, a lifting valve and a valve rod or a spiral valve and a screw rod, the polytetrafluoroethylene telescopic pipe is in threaded connection with a polytetrafluoroethylene spherical ejector pin or a polytetrafluoroethylene conical ejector pin or a polytetrafluoroethylene disc-shaped ejector pin, and the polytetrafluoroethylene spherical ejector pin or the polytetrafluoroethylene conical ejector pin or the polytetrafluoroethylene disc-shaped ejector pin is in threaded connection with the valve rod or the lead screw and is lifted to the upper middle portion of the glass valve shell in a limited mode through the valve rod or the lead screw and the polytetrafluoroethylene telescopic pipe. According to the utility model, glass reaction kettles with different diameters can be adapted by replacing the ejector pin, so that the adjustment of the discharge flow is very convenient, the operation process is simplified, fine flow control can be carried out according to actual requirements, the flexibility and accuracy of operation are improved, and the production efficiency is improved. And the problems of resource waste and production cost increase caused by replacement of the whole emptying bottom valve are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of chemical equipment, specifically relates to a glass feed bottom valve and glass reaction kettle. BACKGROUND

[0002] The reaction kettle is the core equipment in the chemical reaction and laboratory research process, and its performance directly affects the efficiency and safety of experiment or production. The feed bottom valve is an important part of the reaction kettle, and its design is directly related to the outflow efficiency of the material and the sealing performance of the system. At present, the glass feed bottom valve of the glass reaction kettle mostly adopts the sealing structure of the four fluorine outer sleeve and the four fluorine valve core closing. This structure is directly inserted into the feed port of the kettle bottom, and is easily damaged by thermal expansion. Especially when the dead angle is formed between the four fluorine outer sleeve and the glass pipe wall, the material reaction is not complete, and it is not easy to clean, which greatly affects the effect of chemical reaction.

[0003] In the prior art, there is a research on the glass feed bottom valve of the glass reaction kettle affecting the effect of chemical reaction, such as patent application CN204628576U - a glass reaction kettle automatic feed bottom valve, which solves the problems of incomplete material reaction, difficult cleaning and other problems affecting the effect of chemical reaction by the design of the sealing flap and the bellows, the optimization of the overall structure of the valve, the application of the static sealing structure and the synergistic effect of the execution cylinder and the adjusting screw. However, the existing glass feed bottom valve focuses on the improvement of automation and sealing by complex mechanical structure, but it is difficult to effectively adjust the discharge flow of the glass reaction kettle with different diameters, so that the whole needs to be replaced to meet the discharge requirements of the glass reaction kettle with different diameters, thereby causing waste of resources and increasing production cost. Therefore, a new technical scheme is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a glass feed bottom valve and glass reaction kettle to solve the problems of the glass feed bottom valve at present, which is difficult to effectively adjust the discharge flow of the glass reaction kettle with different diameters, so that the whole needs to be replaced to meet the discharge requirements of the glass reaction kettle with different diameters, thereby causing waste of resources and increasing production cost.

[0005] To achieve the above purpose, the utility model provides the following three technical schemes, and each technical scheme is divided into two lifting structures:

[0006] The first structure in the first technical solution: a glass feed bottom valve, including a glass valve shell, a lift valve connected to the lower end of the glass valve shell through a flange, and a valve rod fixed to the four-fluorine valve core in the lift valve, a pipeline vertically arranged in the middle of the glass valve shell, a four-fluorine expansion tube sealingly connected to the top end of the pipeline, a four-fluorine spherical top pin threadedly connected to the top end of the four-fluorine expansion tube, and the inner bottom middle part of the four-fluorine spherical top pin threadedly connected to the top end of the valve rod penetrating the pipeline and limited to lift in the middle upper part of the glass valve shell through the valve rod and the four-fluorine expansion tube.

[0007] Further, the upper end of the lift valve is fixedly connected to the glass valve shell through a flange, the lower end of the lift valve is rotationally connected with an adjusting knob, the adjusting knob is arranged in connection with the four-fluorine valve core and is arranged to lift with the valve rod through the four-fluorine valve core; the lower end of the valve rod is fixedly connected to the four-fluorine valve core in the lift valve and is arranged to lift in the pipeline in the middle of the glass valve shell through the four-fluorine valve core and the adjusting knob; the upper end of the valve rod passes through the pipeline in the middle of the glass valve shell and extends to the outside of the pipeline and is threadedly connected with the four-fluorine spherical top pin threadedly connected to the four-fluorine expansion tube.

[0008] The second structure in the first technical solution: a glass feed bottom valve, including a glass valve shell, a screw valve threadedly connected to the lower end of the glass valve shell, and a lead screw fixed to the inside of the screw valve, a pipeline vertically arranged in the middle of the glass valve shell, a four-fluorine expansion tube sealingly connected to the top end of the pipeline, a four-fluorine spherical top pin threadedly connected to the top end of the four-fluorine expansion tube, and the inner bottom middle part of the four-fluorine spherical top pin threadedly connected to the top end of the lead screw penetrating the pipeline and limited to lift in the middle upper part of the glass valve shell through the lead screw and the four-fluorine expansion tube.

[0009] Further, the upper end of the screw valve is threadedly connected to the sidewall of the inner bottom end of the glass valve shell, the lower end of the screw valve is fixed with a knob, the knob is arranged to lift with the lead screw through the screw valve and the glass valve shell threadedly connected; the lower end of the lead screw is fixed to the inside of the screw valve and is arranged to lift in the pipeline in the middle of the glass valve shell through the screw valve and the knob; the upper end of the lead screw passes through the pipeline in the middle of the glass valve shell and extends to the outside of the pipeline and is threadedly connected with the four-fluorine spherical top pin threadedly connected to the four-fluorine expansion tube.

[0010] Further, the inner bottom middle part of the four-fluorine spherical top pin is threadedly connected to the top end of the valve rod or the lead screw, and the inner bottom sidewall of the four-fluorine spherical top pin is threadedly connected to the top end of the four-fluorine expansion tube; a sealing ring is arranged on the outer circumference of the four-fluorine spherical top pin.

[0011] The first structure in the second technical solution is a glass feed bottom valve, which comprises a glass valve shell, a lift valve connected to the lower end of the glass valve shell through a flange, and a valve rod fixed to a PTFE valve core in the lift valve, wherein a pipeline is vertically arranged in the middle part of the glass valve shell, a PTFE expansion tube is sealingly connected to the top end of the pipeline, a PTFE conical top pin is threadedly connected to the top end of the PTFE expansion tube, and the inner bottom middle part of the PTFE conical top pin is threadedly connected to the top end of a valve rod penetrating through the pipeline and is limited to be lifted in the middle upper part of the glass valve shell through the valve rod and the PTFE expansion tube.

[0012] Further, the upper end of the lift valve is fixedly connected to the glass valve shell through a flange, the lower end of the lift valve is rotationally connected to an adjusting knob, the adjusting knob is arranged in connection with the PTFE valve core and is arranged to be lifted with the valve rod through the PTFE valve core, the lower end of the valve rod is fixedly connected to the PTFE valve core in the lift valve and is lifted in the pipeline in the middle part of the glass valve shell through the PTFE valve core and the adjusting knob, the upper end of the valve rod passes through the pipeline in the middle part of the glass valve shell and extends to the outside of the pipeline, is arranged in a sleeved manner with the PTFE expansion tube, and is threadedly connected to the PTFE conical top pin threadedly connected to the PTFE expansion tube.

[0013] The second structure in the second technical solution is a glass feed bottom valve, which comprises a glass valve shell, a screw valve threadedly connected to the lower end of the glass valve shell, and a lead screw fixed to the inside of the screw valve, wherein a pipeline is vertically arranged in the middle part of the glass valve shell, a PTFE expansion tube is sealingly connected to the top end of the pipeline, a PTFE conical top pin is threadedly connected to the top end of the PTFE expansion tube, and the inner bottom middle part of the PTFE conical top pin is threadedly connected to the top end of a lead screw penetrating through the pipeline and is limited to be lifted in the middle upper part of the glass valve shell through the lead screw and the PTFE expansion tube.

[0014] Further, the upper end of the screw valve is threadedly connected to the sidewall of the inner bottom end of the glass valve shell, the lower end of the screw valve is fixedly connected to a knob, the knob is arranged to be lifted with the lead screw through the screw valve and the glass valve shell which are threadedly connected, the lower end of the lead screw is fixed to the inside of the screw valve and is lifted in the pipeline in the middle part of the glass valve shell through the screw valve and the knob, the upper end of the lead screw passes through the pipeline in the middle part of the glass valve shell and extends to the outside of the pipeline, is arranged in a sleeved manner with the PTFE expansion tube, and is threadedly connected to the PTFE conical top pin threadedly connected to the PTFE expansion tube.

[0015] Further, the inner bottom middle part of the PTFE conical top pin is threadedly connected to the top end of the valve rod or the lead screw, and the inner bottom sidewall of the PTFE conical top pin is threadedly connected to the top end of the PTFE expansion tube; a sealing ring is arranged in contact with the outer middle part of the PTFE conical top pin in the circumferential direction.

[0016] The first structure in the third technical solution is a glass feed bottom valve, which comprises a glass valve shell, a lift valve connected to the lower end of the glass valve shell through a flange, and a valve rod fixed to a PTFE valve core in the lift valve, wherein a pipeline is vertically arranged in the middle of the glass valve shell, a PTFE expansion tube is sealingly connected to the top end of the pipeline, a PTFE disc-shaped top pin is threadedly connected to the top end of the PTFE expansion tube, and the inner bottom middle part of the PTFE disc-shaped top pin is threadedly connected to the top end of a valve rod penetrating through the pipeline and is limited to ascend and descend in the middle upper part of the glass valve shell through the valve rod and the PTFE expansion tube.

[0017] Further, the upper end of the lift valve is fixedly connected to the glass valve shell through a flange, the lower end of the lift valve is rotatably connected to an adjusting knob, the adjusting knob is arranged in connection with the PTFE valve core and is arranged to ascend and descend with the valve rod through the PTFE valve core, the lower end of the valve rod is fixedly connected to the PTFE valve core in the lift valve and is arranged to ascend and descend in the pipeline in the middle of the glass valve shell through the PTFE valve core and the adjusting knob, the upper end of the valve rod passes through the pipeline in the middle of the glass valve shell and extends to the outside of the pipeline, is arranged in a sleeved manner with the PTFE expansion tube, and is threadedly connected to the PTFE disc-shaped top pin threadedly connected to the PTFE expansion tube.

[0018] The second structure in the third technical solution is a glass feed bottom valve, which comprises a glass valve shell, a screw valve threadedly connected to the lower end of the glass valve shell, and a lead screw fixed to the inside of the screw valve, wherein a pipeline is vertically arranged in the middle of the glass valve shell, a PTFE expansion tube is sealingly connected to the top end of the pipeline, a PTFE disc-shaped top pin is threadedly connected to the top end of the PTFE expansion tube, and the inner bottom middle part of the PTFE disc-shaped top pin is threadedly connected to the top end of a lead screw penetrating through the pipeline and is limited to ascend and descend in the middle upper part of the glass valve shell through the lead screw and the PTFE expansion tube.

[0019] Further, the upper end of the screw valve is threadedly connected to the sidewall of the inner bottom end of the glass valve shell, the lower end of the screw valve is fixedly connected to a knob, the knob is arranged to ascend and descend with the lead screw through the screw valve and the glass valve shell which are threadedly connected, the lower end of the lead screw is fixed to the inside of the screw valve and is arranged to ascend and descend in the pipeline in the middle of the glass valve shell through the screw valve and the knob, the upper end of the lead screw passes through the pipeline in the middle of the glass valve shell and extends to the outside of the pipeline, is arranged in a sleeved manner with the PTFE expansion tube, and is threadedly connected to the PTFE disc-shaped top pin threadedly connected to the PTFE expansion tube.

[0020] Further, the inner bottom middle part of the PTFE disc-shaped top pin is threadedly connected to the top end of the valve rod or the lead screw, and the inner bottom sidewall of the PTFE disc-shaped top pin is threadedly connected to the top end of the PTFE expansion tube; a sealing ring is circumferentially arranged on the outer top part of the PTFE disc-shaped top pin.

[0021] In addition to the above technical solutions, there is a glass reaction kettle with the glass feed bottom valve.

[0022] Compared with the prior art, the utility model has the advantages of

[0023] 1. The utility model discloses a four fluorine ball -shaped thimble, four fluorine conical thimble or four fluorine disc -shaped thimble and so on different shape's thimble are designed, and with four fluorine telescopic pipe and valve stem or screw rod thread connection, realize through the mode of replacing thimble to adapt to the glass reactor of different diameter, not only can make the discharge flow regulation become exceptionally convenient, effectively simplify the operation process, also can according to actual demand carry out fine flow control, improve the flexibility and accuracy of operation, effectively avoid the problem of resource waste and production cost increase caused by replacing entire glass discharge bottom valve, can also reduce the possibility of failure occurrence simultaneously, further reduce maintenance cost, guarantee the efficiency and safety of glass reactor discharge;

[0024] 2. The utility model discloses a four fluorine ball -shaped thimble and four fluorine telescopic pipe and valve stem or screw rod are connected by screw thread, make this glass discharge bottom valve can adapt to the glass reactor of smaller diameter, because the adjustment range of four fluorine ball -shaped thimble is larger, so the glass discharge bottom valve can be applicable to the material discharge adjustment of greater density or with sediment particle, adopt the sealing ring that can replace and contacts glass reactor body on the outside circumferential of four fluorine ball -shaped thimble, effectively prevent the leakage of material in the reaction process, ensure the sealing performance of system, not only improve the reliability and durability of glass discharge bottom valve, also effectively reduce the production loss and safety risk caused by material leakage, also because of adopting linear sealing structure, effectively avoid the problem of four fluorine expansion damage glass reactor body because of heat, the sealing effect will be better, so that chemical material is dead angle -free in reaction, thereby guarantee that glass reactor discharge is no residue, and cleaning is more thorough;

[0025] 3. The utility model discloses a four fluorine conical thimble and four fluorine telescopic pipe and valve stem or screw rod are connected by screw thread, make this glass discharge bottom valve can adapt to the glass reactor of slightly larger diameter, because the adjustment range of four fluorine conical thimble is larger, so the glass discharge bottom valve can be applicable to the material discharge adjustment of greater density or with sediment particle, adopt the sealing ring that can replace and contacts glass reactor body on the outside circumferential of four fluorine conical thimble's outer middle part, effectively prevent the leakage of material in the reaction process, ensure the sealing performance of system, not only improve the reliability and durability of glass discharge bottom valve, also effectively reduce the production loss and safety risk caused by material leakage, also because of adopting linear sealing structure, effectively avoid the problem of four fluorine expansion damage glass reactor body because of heat, the sealing effect will be better, so that chemical material is dead angle -free in reaction, thereby guarantee that glass reactor discharge is no residue, and cleaning is more thorough;

[0026] 4. This utility model connects the PTFE disc-shaped ejector pin with the PTFE telescopic tube and valve stem or lead screw via threaded connection, enabling the glass discharge bottom valve to adapt to glass reactors with larger diameters. Because the PTFE disc-shaped ejector pin has a wide adjustment range, this glass discharge bottom valve is suitable for discharging and adjusting materials with high density or containing sedimentary particles. A replaceable sealing ring, in contact with the glass reactor body, is fitted around the outer circumference of the PTFE disc-shaped ejector pin, effectively preventing material leakage during the reaction process and ensuring the system's sealing performance. This not only improves the reliability and durability of the glass discharge bottom valve but also effectively reduces production losses and safety risks caused by material leakage. Furthermore, the use of a line seal structure effectively avoids damage to the glass reactor body due to the thermal expansion of the PTFE, resulting in a better sealing effect and ensuring no dead zones during chemical reaction. This guarantees no residue during discharge from the glass reactor and more thorough cleaning.

[0027] 5. This utility model adopts two lifting structures to realize the reliable opening and closing of the valve. By adjusting the knob to control the valve stem or the knob to control the screw, the PTFE ball pin, PTFE cone pin or PTFE disc pin can be lifted and lowered, so that the operator can easily adjust the discharge flow rate. Thus, the design of this glass discharge bottom valve is simple, practical and easy to operate and maintain. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0029] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0030] Figure 3 for Figure 1 Schematic diagram of the structure of a PTFE spherical ejector pin;

[0031] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0032] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure;

[0033] Figure 6 for Figure 4 Schematic diagram of the structure of a PTFE conical ejector pin;

[0034] Figure 7 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0035] Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure;

[0036] Figure 9 for Figure 7Structure schematic view of four-fluorine disc-shaped top needle;

[0037] Figure 10 The schematic view of the screw rod and the glass valve shell connecting structure of the embodiment 2, the embodiment 4 and the embodiment 6 of the utility model.

[0038] 1, lift valve; 2, valve rod; 3, glass valve shell; 4, adjusting knob; 5, pipeline; 6, four-fluorine telescopic pipe; 7, four-fluorine ball-shaped top needle; 8, sealing ring; 9, pipe orifice; 10, four-fluorine cone-shaped top needle; 11, four-fluorine disc-shaped top needle; 12, screw rod; 13, screw valve; 14, knob. DETAILED DESCRIPTION

[0039] The following embodiments are used to further illustrate the content of the utility model and do not limit the application of the utility model. Embodiment 1:

[0040] Please refer to Figures 1-3 , the embodiment provides a glass feed bottom valve, including for controlling glass reactor feed lift valve 1, fixed in the four-fluorine valve core (the function and structure of four-fluorine valve core and conventional equipment are all known in the art, and the connection setting is also common knowledge, so it is not described here, and it is not shown in the drawing) on the four-fluorine valve core and for connecting the top needle valve rod 2 and fixed on the upper end of the lift valve 1 for connecting the glass reactor material pipeline glass valve shell 3, and the outer side of glass valve shell 3 is provided with the pipe orifice 9 connected with the material pipeline, the glass valve shell 3 is connected with the lift valve 1 through the flange, the lower end of the lift valve 1 is rotatably connected with the adjusting knob 4 connected with the four-fluorine valve core in the lift valve 1 and used for controlling the lifting of the top needle, the middle part of the glass valve shell 3 is vertically provided with the pipeline 5 for the valve rod 2 to pass through, in order to facilitate the lifting of the valve rod 2, the top end of the pipeline 5 is sealingly connected with the four-fluorine telescopic pipe 6 used for matching the lifting of the valve rod 2, the top end of the four-fluorine telescopic pipe 6 is screwedly connected with the four-fluorine ball-shaped top needle 7 used for sealing the glass reactor discharge port and adjusting the discharge flow, the inner bottom middle part of the four-fluorine ball-shaped top needle 7 is screwedly connected with the top end of the valve rod 2, the lower end of the valve rod 2 is fixedly connected with the four-fluorine valve core in the lift valve 1 and simultaneously lifted in the pipeline 5 in the middle part of the glass valve shell 3 through the four-fluorine valve core and the adjusting knob 4, the upper end of the valve rod 2 passes through the pipeline 5 from the inside of the lift valve 1 along the middle part of the glass valve shell 3 and extends to the outside of the pipeline 5 and is in a sleeved arrangement with the four-fluorine telescopic pipe 6 and is simultaneously screwedly connected with the four-fluorine ball-shaped top needle 7, the inner bottom side wall of the four-fluorine ball-shaped top needle 7 is screwedly connected with the top end of the four-fluorine telescopic pipe 6 and is limited to be lifted in the middle upper part of the glass valve shell 3 through the four-fluorine telescopic pipe 6, the valve rod 2 and the four-fluorine valve core in the lift valve 1, and the outer circumferential surface of the four-fluorine ball-shaped top needle 7 is abutted and arranged with the sealing ring 8 used for preventing material leakage and contacting with the glass reactor body.

[0041] The working principle and use process of the embodiment: as Figures 1-3As shown, after the glass bottom valve is assembled, the operator installs the glass bottom valve on the discharge port of the glass reactor (the functions and structures of the glass reactor and other conventional devices are well known in the art, and the connection settings are also well known, so they are not described here, and they are not shown in the drawings), and then easily controls the lifting of the valve rod 2 and the four-fluorine spherical needle 7 by rotating the adjusting knob 4, thereby adjusting the discharge flow to adapt to smaller diameter glass reactors and to meet the discharge adjustment of materials with high density or containing sediment particles.

[0042] Since the four-fluorine spherical needle 7 is connected to the discharge port of the glass reactor through the sealing ring 8 during the reaction process of the glass reactor, when the 50L glass reactor needs to be discharged, the operator only needs to rotate the adjusting knob 4 to control the valve rod 2 to rise through the four-fluorine valve core in the lifting valve 1. At this time, the four-fluorine spherical needle 7 will rise synchronously under the combined action of the rising of the valve rod 2 and the limiting of the four-fluorine telescopic tube 6, until the sealing ring 8 on the four-fluorine spherical needle 7 is separated from the discharge port, i.e. the discharge port is opened. The material in the glass reactor will be discharged into the glass valve shell 3 through the opened discharge port, and then discharged into the collection tank (the functions and structures of the collection tank and other conventional devices are well known in the art, and the connection settings are also well known, so they are not described here, and they are not shown in the drawings) through the pipe 9 on the outside of the glass valve shell 3. During the discharge process, the operator can adjust the discharge flow by controlling the rising amplitude of the valve rod 2 (i.e. the opening amplitude of the discharge port) through the adjusting knob 4. Example 2

[0043] Please refer to Figure 10 The structure, working principle and use process of the glass bottom valve in this embodiment are consistent with those of Example 1, and only the lifting structure is different, i.e. the lower end of the glass valve shell 3 is threadedly connected with a screw valve 13 for controlling the lifting, the inside of the screw valve 13 is fixed with a lead screw 12 for driving the needle to lift, and the middle part of the glass valve shell 3 is vertically provided with a pipeline 5, the top end of the pipeline 5 is sealingly connected with a four-fluorine telescopic tube 6, the top end of the four-fluorine telescopic tube 6 is threadedly connected with a four-fluorine spherical needle 7, and the inner bottom middle part of the four-fluorine spherical needle 7 is threadedly connected with the top end of the lead screw 12 penetrating through the pipeline 5 and is limited to lift in the middle and upper part of the glass valve shell 3 through the lead screw 12 and the four-fluorine telescopic tube 6.

[0044] The upper end of the screw valve 13 is threadedly connected to the side wall of the inner bottom end of the glass valve shell 3, the lower end of the screw valve 13 is fixed with a knob 14 for operation, and the knob 14 is threadedly connected with the screw valve 13 and the glass valve shell 3 to lift the lead screw 12.

[0045] The lower end of the screw rod 12 is fixed in the interior of the screw valve 13 and is lifted in the pipe in the middle of the glass valve shell 3 through the screw valve 13 and the knob 14, the upper end of the screw rod 12 passes through the pipe 5 in the middle of the glass valve shell 3 from the interior of the screw valve 13 and extends to the outside of the pipe 5 and is in a sleeved arrangement with the PTFE telescopic pipe 6 and is screwed with the PTFE conical needle 7 screwed on the PTFE telescopic pipe 6;

[0046] The lifting operation is that the operator rotates the knob 14 to form a screw lifting between the screw valve 13 and the glass valve shell 3, at the same time, the screw rod 12 drives the PTFE conical needle 7 to lift to adjust the flow of the discharge. Embodiment 3

[0047] Please refer to Figures 4-6 In the embodiment, a glass discharge bottom valve is provided, which comprises a lifting valve 1 for controlling the discharge of a glass reactor, a valve rod 2 fixed on a PTFE valve core in the lifting valve 1 and used for connecting a needle and a glass valve shell 3 fixed on the upper end of the lifting valve 1 and used for connecting a material pipe of the glass reactor, the outer side of the glass valve shell 3 is provided with a pipe opening 9 connected with the material pipe, the glass valve shell 3 is connected with the lifting valve 1 through a flange, the lower end of the lifting valve 1 is rotatably connected with an adjusting knob 4 connected with the PTFE valve core in the lifting valve 1 and used for controlling the lifting of the needle, the middle of the glass valve shell 3 is vertically provided with a pipe 5 for the valve rod 2 to pass through, in order to facilitate the lifting of the valve rod 2, the top end of the pipe 5 is sealingly connected with a PTFE telescopic pipe 6 used for matching the lifting of the valve rod 2, the top end of the PTFE telescopic pipe 6 is screwed with a PTFE conical needle 10 used for sealing the discharge port of the glass reactor and adjusting the discharge flow, the inner bottom middle of the PTFE conical needle 10 is screwed with the top end of the valve rod 2, the lower end of the valve rod 2 is fixedly connected with the PTFE valve core in the interior of the lifting valve 1 and is lifted in the pipe 5 in the middle of the glass valve shell 3 through the PTFE valve core and the adjusting knob 4, the upper end of the valve rod 2 passes through the pipe 5 in the middle of the glass valve shell 3 from the interior of the lifting valve 1 and extends to the outside of the pipe 5 and is in a sleeved arrangement with the PTFE telescopic pipe 6 and is screwed with the PTFE conical needle 10, the inner bottom side wall of the PTFE conical needle 10 is screwed with the top end of the PTFE telescopic pipe 6 and is limitedly lifted in the middle and upper part of the glass valve shell 3 through the PTFE telescopic pipe 6, the valve rod 2 and the PTFE valve core in the interior of the lifting valve 1, the outer middle part of the PTFE conical needle 10 is circumferentially and abuttingly provided with a sealing ring 8 used for preventing material leakage and contacting with the body of the glass reactor.

[0048] The working principle and use process of the embodiment are as follows: Figures 4-6The glass discharge bottom valve is installed on the discharge port of the glass reactor, and the discharge flow is adjusted by rotating the adjusting knob 4 to drive the PTFE conical needle 10 to rise and fall, so that the glass discharge bottom valve can be adapted to the glass reactor with larger diameter and can meet the discharge adjustment of materials with larger density or containing sediment particles.

[0049] When the 100L glass reactor needs to discharge, the operator only needs to rotate the adjusting knob 4 to control the valve rod 2 to rise through the PTFE valve core in the lifting valve 1. At this time, the PTFE conical needle 10 will rise synchronously under the combined action of the rising of the valve rod 2 and the limiting of the PTFE telescopic pipe 6, until the sealing ring 8 on the PTFE conical needle 10 is separated from the discharge port, that is, the discharge port is opened. The materials in the glass reactor will be discharged into the glass valve shell 3 through the opened discharge port, and then discharged into the collection tank through the pipe 9 outside the glass valve shell 3. During the discharging process, the rising amplitude of the valve rod 2 (i.e. the opening amplitude of the discharge port) can be controlled by the adjusting knob 4 to adjust the discharge flow. Example 4:

[0050] Please refer to Figure 10 The glass discharge bottom valve structure, working principle and use process in this embodiment are consistent with those in example 3, and only the lifting structure is different, that is, the lower end of the glass valve shell 3 is screw-connected with a screw valve 13 for controlling lifting, the inside of the screw valve 13 is fixed with a lead screw 12 for driving the needle to rise and fall, the middle part of the glass valve shell 3 is vertically provided with a pipeline 5, the top end of the pipeline 5 is sealingly connected with a PTFE telescopic pipe 6, the top end of the PTFE telescopic pipe 6 is screw-connected with a PTFE conical needle 10, and the inner bottom middle part of the PTFE conical needle 10 is screw-connected with the top end of the lead screw 12 penetrating through the pipeline 5 and is limited to rise and fall in the middle upper part of the glass valve shell 3 through the lead screw 12 and the PTFE telescopic pipe 6;

[0051] The upper end of the screw valve 13 is screw-connected to the side wall of the inner bottom end of the glass valve shell 3, the lower end of the screw valve 13 is fixed with a knob 14 for operation, and the knob 14 is screw-connected with the screw valve 13 and the glass valve shell 3 and is arranged with the lead screw 12 for lifting;

[0052] The lower end of the lead screw 12 is fixed in the inside of the screw valve 13 and is lifted in the pipeline in the middle part of the glass valve shell 3 through the screw valve 13 and the knob 14, the upper end of the lead screw 12 penetrates in the pipeline 5 along the middle part of the glass valve shell 3 and extends to the outside of the pipeline 5 and is in a sleeved arrangement with the PTFE telescopic pipe 6 and is screw-connected with the PTFE conical needle 10 screw-connected on the PTFE telescopic pipe 6;

[0053] The lifting operation is as follows: the operator rotates the knob 14 to make the screw valve 13 and the glass valve shell 3 form a screw lifting, at the same time, the screw rod 12 drives the four-fluorine conical top pin 10 to lift under the action of screw lifting to adjust the flow of the discharge. Example 5:

[0054] Please refer to Figures 7-9 , the embodiment provides a glass discharge bottom valve, which comprises a lifting valve 1 for controlling the discharge of a glass reactor, a valve rod 2 fixed to a four-fluorine valve core in the lifting valve 1 and used for connecting a top pin, and a glass valve shell 3 fixed to the upper end of the lifting valve 1 and used for connecting a material pipeline of the glass reactor, and the outer side of the glass valve shell 3 is provided with a pipe opening 9 connected with the material pipeline, the glass valve shell 3 is connected with the lifting valve 1 through a flange, the lower end of the lifting valve 1 is rotationally connected with an adjusting knob 4 connected with the four-fluorine valve core in the lifting valve 1 and used for controlling the lifting of the top pin, the middle part of the glass valve shell 3 is vertically provided with a pipeline 5 for the valve rod 2 to pass through, in order to facilitate the lifting of the valve rod 2, the top end of the pipeline 5 is sealingly connected with a four-fluorine expansion tube 6 used for matching the lifting of the valve rod 2, the top end of the four-fluorine expansion tube 6 is threadedly connected with a four-fluorine disc-shaped top pin 11 used for sealing the discharge port of the glass reactor and adjusting the discharge flow, the inner bottom middle part of the four-fluorine disc-shaped top pin 11 is threadedly connected with the top end of the valve rod 2, the lower end of the valve rod 2 is fixedly connected with the four-fluorine valve core located in the lifting valve 1 and simultaneously lifted in the pipeline 5 in the middle part of the glass valve shell 3 through the four-fluorine valve core and the adjusting knob 4, the upper end of the valve rod 2 passes through the pipeline 5 along the direction of the middle part of the glass valve shell 1 from the inside of the lifting valve 1 and extends to the outside of the pipeline 5 to be in a sleeved arrangement with the four-fluorine expansion tube 6 and is simultaneously threadedly connected with the four-fluorine disc-shaped top pin 11, the inner bottom side wall of the four-fluorine disc-shaped top pin 11 is threadedly connected with the top end of the four-fluorine expansion tube 6 and is limited to be lifted in the middle upper part of the glass valve shell 3 through the four-fluorine expansion tube 6, the valve rod 2 and the four-fluorine valve core in the valve rod 2, and the outer middle part of the four-fluorine disc-shaped top pin 11 is circumferentially provided with a sealing ring 8 used for preventing material leakage and contacting the glass reactor body.

[0055] The working principle and use process of the embodiment are as follows: Figures 7-9 After the glass discharge bottom valve is assembled, the operator installs the glass discharge bottom valve as a whole at the discharge port of the glass reactor, and then easily controls the lifting of the four-fluorine disc-shaped top pin 11 driven by the valve rod 2 by rotating the adjusting knob 4, so as to adjust the discharge flow and make it adapt to the glass reactor with a larger diameter and meet the discharge adjustment of the material with a larger density or containing sediment particles.

[0056] When the 200L glass reactor needs to be discharged, the operator only needs to rotate the adjusting knob 4 to control the valve rod 2 to rise through the fluorine valve core in the lift valve 1. At this time, the fluorine disc-shaped top needle 11 will rise synchronously under the combined action of the rising of the valve rod 2 and the limiting of the fluorine telescopic pipe 6, until the sealing ring 8 on the fluorine disc-shaped top needle 11 is separated from the discharge port, that is, the discharge port is opened. The material in the glass reactor will be discharged into the glass valve shell 3 through the opened discharge port, and then discharged into the collection tank through the pipe 9 outside the glass valve shell 3. During the discharging process, the flow rate of the discharge can be adjusted by adjusting the rising amplitude of the valve rod 2 (i.e. the opening amplitude of the discharge port) through the adjusting knob 4. Example 6:

[0057] Please refer to Figure 10 The glass discharge bottom valve structure, working principle and use process set in the embodiment are consistent with those of example 5, and only the lifting structure is inconsistent, that is, the lower end of the glass valve shell 3 is threadedly connected with a screw valve 13 for controlling lifting, the inside of the screw valve 13 is fixed with a lead screw 12 for driving the top needle to lift, and the middle part of the glass valve shell 3 is vertically provided with a pipeline 5, the top end of the pipeline 5 is sealingly connected with a fluorine telescopic pipe 6, the top end of the fluorine telescopic pipe 6 is threadedly connected with a fluorine disc-shaped top needle 11, and the inner bottom middle part of the fluorine disc-shaped top needle 11 is threadedly connected with the top end of the lead screw 12 penetrating through the pipeline 5 and is limited to lift in the middle upper part of the glass valve shell 3 through the lead screw 12 and the fluorine telescopic pipe 6;

[0058] The upper end of the screw valve 13 is threadedly connected to the side wall of the inner bottom end of the glass valve shell 3, the lower end of the screw valve 13 is fixed with a knob 14 for operation, and the knob 14 is threadedly connected with the screw valve 13 and the glass valve shell 3 and is arranged to lift with the lead screw 12;

[0059] The lower end of the lead screw 12 is fixed in the inside of the screw valve 13 and simultaneously lifts in the pipeline in the middle part of the glass valve shell 3 through the screw valve 13 and the knob 14, the upper end of the lead screw 12 penetrates in the pipeline 5 from the inside of the screw valve 13 along the middle part of the glass valve shell 3 and extends to the outside of the pipeline 5 to be in a sleeved arrangement with the fluorine telescopic pipe 6 and is threadedly connected with the fluorine disc-shaped top needle 11 threadedly connected on the fluorine telescopic pipe 6;

[0060] The lifting operation is as follows: the operator rotates the knob 14 to form a screw lifting between the screw valve 13 and the glass valve shell 3, and at the same time, the lead screw 12 drives the fluorine disc-shaped top needle 11 to lift under the action of the screw lifting to adjust the flow rate of the discharge. Example 7:

[0061] Please refer to Figures 1-10As another object of the utility model, a glass reaction kettle is provided, and the glass reaction kettle is provided with any of the glass bottom discharge valves described above, so that the glass reaction kettle can obtain any of the beneficial effects of the glass bottom discharge valves described above, and details are not repeated here.

Claims

1. A glass feedstock bottom valve comprising a glass valve shell, a lift valve flange connected to the lower end of the glass valve shell and a valve stem fixed to the four-fluorine valve core inside the lift valve, or a screw valve threaded to the lower end of the glass valve shell and a screw rod fixed to the inside of the screw valve, a vertical pipeline is arranged in the middle of the glass valve shell, and a four-fluorine telescopic pipe is sealingly connected to the top end of the pipeline, characterized in that, The top end of the four-fluorine telescopic pipe is threadedly connected with a four-fluorine spherical top needle, a four-fluorine conical top needle or a four-fluorine disc top needle, the inner bottom middle part of the four-fluorine spherical top needle, the four-fluorine conical top needle or the four-fluorine disc top needle is threadedly connected with the top end of the valve rod or the screw rod penetrating through the pipeline, and the four-fluorine spherical top needle, the four-fluorine conical top needle or the four-fluorine disc top needle is threadedly connected with the four-fluorine telescopic pipe.

2. A glass forehearth valve according to claim 1 wherein, The upper end of the lifting valve is fixedly connected with the glass valve shell through a flange, and the lower end of the lifting valve is rotatably connected with an adjusting knob, which is arranged in connection with the four-fluorine valve core and is arranged in lifting connection with the valve rod through the four-fluorine valve core.

3. A glass forehearth valve according to claim 2 wherein, The lower end of the valve rod is fixedly connected with the four-fluorine valve core located in the interior of the lifting valve and is lifted in the pipeline in the middle part of the glass valve shell through the four-fluorine valve core and the adjusting knob.

4. A glass forehearth valve according to claim 3 wherein, The upper end of the valve rod penetrates in the pipeline from the interior of the lifting valve in the direction of the middle part of the glass valve shell and extends to the outside of the pipeline to be threadedly connected with the four-fluorine spherical top needle, the four-fluorine conical top needle or the four-fluorine disc top needle threadedly connected on the four-fluorine telescopic pipe.

5. A glass forehearth valve according to claim 1 wherein, The upper end of the screw valve is threadedly connected to the side wall of the inner bottom end of the glass valve shell, the lower end of the screw valve is fixedly provided with a knob, and the knob is arranged in lifting connection with the screw rod through the screw valve and the glass valve shell.

6. A glass forehearth valve according to claim 5 wherein, The lower end of the screw rod is fixed to the interior of the screw valve and is lifted in the pipeline in the middle part of the glass valve shell through the screw valve and the knob, and the upper end of the screw rod penetrates in the pipeline from the interior of the screw valve in the direction of the middle part of the glass valve shell and extends to the outside of the pipeline to be threadedly connected with the four-fluorine spherical top needle, the four-fluorine conical top needle or the four-fluorine disc top needle threadedly connected on the four-fluorine telescopic pipe.

7. A glass forehearth valve according to claim 1 wherein, The inner bottom middle part of the four-fluorine spherical top needle is threadedly connected to the top end of the valve rod or the screw rod, and the inner bottom side wall thereof is threadedly connected to the top end of the four-fluorine telescopic pipe.

8. A glass forehearth valve according to claim 1 wherein, The inner bottom middle part of the four-fluorine conical top needle is threadedly connected to the top end of the valve rod or the screw rod, and the inner bottom side wall thereof is threadedly connected to the top end of the four-fluorine telescopic pipe.

9. A glass forehearth valve according to claim 1 wherein, The inner bottom middle part of the four-fluorine disc top needle is threadedly connected to the top end of the valve rod or the screw rod, and the inner bottom side wall thereof is threadedly connected to the top end of the four-fluorine telescopic pipe.

10. A glass reactor vessel characterized by, The glass bottom valve comprises the glass bottom valve according to any one of claims 1-9.

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