CN210477909U

CN210477909U - Multistage screw rod mechanism of carbon rod extruder

Info

Publication number: CN210477909U
Application number: CN201920722132.3U
Authority: CN
Inventors: 夏育平; 王华清; 罗高杰; 王新有
Original assignee: Ningbo Ultraman Automation Equipment Co ltd
Current assignee: Ningbo Ultraman Automation Equipment Co ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-05-08
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a multistage screw rod mechanism of carbon rod extruder, be used for controlling each work piece moving total controlling means including frame and setting in the frame, be equipped with the feed cylinder that is used for holding the raw materials in the frame, and feed mechanism, still be equipped with one-level screw rod mechanism and second grade screw rod mechanism in the frame, one-level screw rod mechanism's front end and feed mechanism intercommunication, second grade screw rod mechanism's end is equipped with the carbon rod export, one-level screw rod mechanism is located second grade screw rod mechanism's top, and one-level screw rod mechanism's end is through the front end intercommunication of first unloader with second grade screw rod mechanism. The utility model discloses a two independent screw rod mechanisms, with plastify and shaping separately, one-level screw rod mechanism is responsible for the plastify, and second grade screw rod mechanism is responsible for the shaping and extrudes for one-level screw rod mechanism can in time follow the end with air and moisture and discharge when heating and melting the active carbon raw materials, makes the pressure homoenergetic in two screw rod mechanisms effectively let out, makes the ejection of compact after the cooling solidification very smooth and easy.

Description

Multistage screw rod mechanism of carbon rod extruder

Technical Field

The utility model belongs to the technical field of the technique of carbon-point extrusion equipment and specifically relates to a multistage screw rod mechanism of carbon-point extruder.

Background

The carbon rod filter element is also called as a sintered activated carbon filter element or a CTO filter element, and is a novel deep filter element. It is made up by using high-quality active carbon as raw material and low-thermofusible adhesive through the processes of continuous extrusion forming. The carbon rod filter element has excellent adsorption performance of granular activated carbon, and effectively overcomes the defect of carbon powder leakage existing in the use of all activated carbon filters. Has the precise filtering characteristic of a tubular element, and can effectively remove organic matters, particles, rust, residual chlorine, peculiar smell and the like in liquid.

The reason that the activated carbon can be used as a high-quality filtering raw material is that the activated carbon has a large surface area and contains a large amount of mesopores and micropores, and the mesopores and micropores enable the activated carbon to have very strong adsorption capacity and further have an excellent filtering function.

Before the carbon rod is not manufactured into a finished carbon rod filter element, the raw material of the activated carbon is actually fine carbon particles, and the mesopores and the micropores are filled with a large amount of air and moisture due to various reasons such as storage environment and the like, so that how to effectively discharge the air and the moisture remained in the activated carbon in the production basic process directly determines the quality of the finished carbon rod.

In the existing carbon rod extruder, a linear single-screw structure is mostly adopted, and the carbon rod extruder mainly comprises a main machine, a screw, a machine barrel, a hopper, a discharge port and the like, wherein when a carbon rod is extruded into a product, the product is output from the discharge port, and in the production process of the carbon rod, the process of heating, melting, cooling and curing is needed. The existing carbon rod extruder has the following defects: firstly, when the heating and the cooling are put together, the contradiction exists, the existing single-screw structure has the contradiction, the temperature of the front section is obviously higher than that of the rear section, so that a large amount of air and moisture in the mesopores and the micropores are gathered at the front section and cannot smoothly flow to the rear section and be discharged, and the carbon rods gathered at the rear section after being solidified cannot smoothly be produced, so that the internal pressure is increased more and more, and in severe cases, the carbon rods at the outlet can be extruded out quickly like shells, and the consequence which is very difficult to bear is caused. Therefore, in order to smoothly operate the conventional carbon rod extruder having a linear single-screw structure, it is necessary to improve the quality of raw materials such as activated carbon and the like and ensure that the raw materials contain less moisture and air, so that normal production can be performed. And secondly, in a linear single-screw structure, the processes of heating to a high temperature and cooling to a heat preservation temperature are required to be respectively realized in the front section and the rear section, so that the temperature channeling condition is easy to occur, and the product quality is reduced.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a multistage screw rod mechanism of a carbon rod extruder.

The technical proposal of the utility model for solving the technical problem is that: the utility model provides a multistage screw rod mechanism of carbon rod extruder, includes the frame and sets up the total controlling means who is used for controlling each work piece moving in the frame, the frame on be equipped with the feed cylinder and the feed mechanism that are used for holding the raw materials, the frame on still be equipped with one-level screw rod mechanism and second grade screw rod mechanism, one-level screw rod mechanism's front end with feed mechanism intercommunication, second grade screw rod mechanism's end is equipped with the carbon rod export, one-level screw rod mechanism be located second grade screw rod mechanism's top, just one-level screw rod mechanism's end through first unloader with second grade screw rod mechanism's front end intercommunication.

Preferably, the primary screw mechanism comprises a first screw stirrer, a first driving device for driving the first screw stirrer, and a high-temperature heating device arranged on the first screw stirrer;

the second-stage screw mechanism comprises a second screw stirrer, a second driving device for driving the second screw stirrer, a low-temperature heating device arranged on the second screw stirrer and a cooling and solidifying device arranged at the tail end of the second screw stirrer.

Preferably, the high-temperature heating device comprises a multi-section high-temperature heating jacket and a high-temperature controller matched with each section of high-temperature heating jacket; the low-temperature heating device comprises a multi-section low-temperature heating sleeve and a low-temperature controller matched with each section of low-temperature heating sleeve.

Preferably, the first-stage screw mechanism and the second-stage screw mechanism are both provided with steam exhaust devices.

Preferably, the steam exhaust device comprises a steam exhaust outer sleeve, a steam exhaust inner sleeve and a plug, a steam exhaust channel is formed in a gap between the steam exhaust inner sleeve and the steam exhaust outer sleeve, the plug blocks the upper end of the steam exhaust channel, an air release hole is formed in the side wall of the steam exhaust outer sleeve, the air release hole is communicated with the steam exhaust channel, and the air release hole is formed in a position close to the plug.

Preferably, the first blanking device comprises a vertical first blanking channel and an exhaust fan, a first exhaust port is formed in the top end of the first blanking channel, the first exhaust port is higher than the first screw stirrer, the exhaust fan is installed in the first exhaust port, a feeding port is formed in the side wall of the first blanking channel, a discharging port is formed in the lower end of the first blanking channel, the feeding port is communicated with the tail end of the first screw stirrer, and the discharging port is communicated with the front end of the second screw stirrer.

Preferably, the feeding mechanism comprises a feeding channel communicated with the material barrel, a feeding screw rod arranged in the feeding channel, a third driving device for driving the feeding screw rod, and a second blanking device positioned at the tail end of the feeding channel, the lower end of the second blanking device is communicated with the primary screw rod mechanism, a second steam outlet is formed in the top end of the second blanking device, and the height of the second steam outlet is higher than that of the feeding channel.

Preferably, the primary screw mechanism further comprises a heat-insulating cover, and the heat-insulating cover covers the first screw stirrer and the high-temperature heating device.

The beneficial effects of the utility model reside in that: 1. two independent screw mechanisms are adopted, areas for heating, temperature rise, temperature reduction and heat preservation are respectively arranged in the independent screw mechanisms, so that plasticization and forming are separated, the first-stage screw mechanism is responsible for plasticization, the second-stage screw mechanism is responsible for forming and extrusion, the first-stage screw mechanism can timely discharge air and moisture from the tail end when the activated carbon raw material is heated and melted, the content of the air and the moisture in the activated carbon raw material entering the second-stage screw mechanism is extremely low, the pressure in the two screw mechanisms can be effectively released, the cooled and solidified discharging is very smooth, the actually measured discharging efficiency is more than 3 times that of the existing single screw mechanism, the requirement on the raw material is greatly reduced, and the production cost is favorably controlled; 2. the temperature of the raw materials cannot be changed, so that a product with higher quality can be produced; 3. a plurality of devices for removing moisture and air are adopted, air and moisture are effectively separated from the molten raw materials and discharged under the action of the first blanking channel, the second blanking device and the steam discharging device, pressure relief is realized in time, overhigh internal pressure is prevented, and meanwhile, the raw materials can be well kept in equipment, so that the utilization rate of the raw materials is improved; 4. the multi-section high-temperature heating and low-temperature cooling structure is adopted, so that the temperature difference change is reduced, the pressure balance is facilitated, and the quality and the stability of the product are improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the overall structure of the heat-insulating cover of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

Fig. 4 is a schematic structural view of the steam exhaust apparatus.

Fig. 5 is an exploded view of the steam exhaust.

Fig. 6 is a sectional view of the steam discharge device.

Fig. 7 is an exploded view of the first blanking device.

Fig. 8 is a cross-sectional view of the first blanking device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 8, a multistage screw mechanism of a carbon rod extruder comprises a frame 1 and a master control device 2 arranged on the frame 1 and used for controlling the operation of each workpiece, wherein the frame 1 is provided with a material cylinder 3 and a feeding mechanism 4 for containing raw materials, the frame 1 is further provided with a first-stage screw mechanism 5 and a second-stage screw mechanism 6, the front end of the first-stage screw mechanism 5 is communicated with the feeding mechanism 4, the tail end of the second-stage screw mechanism 6 is provided with a carbon rod outlet 7, the first-stage screw mechanism 5 is arranged above the second-stage screw mechanism 6, and the tail end of the first-stage screw mechanism 5 is communicated with the front end of the second-stage screw mechanism 6 through a first blanking device 8.

In this embodiment, the primary screw mechanism 5 includes a first screw stirrer 10, a first driving device 11 for driving the first screw stirrer 10, and a high-temperature heating device disposed on the first screw stirrer 10; the second-stage screw mechanism 6 comprises a second screw stirrer 12, a second driving device 13 for driving the second screw stirrer 12, a low-temperature heating device arranged on the second screw stirrer 12, and a cooling and solidifying device 15 (preferably a liquid cooling device) arranged at the tail end of the second screw stirrer 12. This embodiment provides a concrete one-level screw mechanism 5 and the structural grouping of second grade screw mechanism 6 for it can realize earlier the function that the raw materials was melted in independent heating through one-level screw mechanism 5, and rethread second grade screw mechanism 6 realizes independent cooling heat preservation function, the solidification of the follow-up carbon-point of being convenient for.

In this embodiment, the high temperature heating device includes a multi-stage high temperature heating jacket 16 and a high temperature controller 17 adapted to each stage of the high temperature heating jacket 16; the low-temperature heating device comprises a multi-section low-temperature heating jacket 18 and a low-temperature controller 19 matched with each section of the low-temperature heating jacket 18. By adopting the structure of the embodiment, the raw materials can be heated step by step through the arrangement of the multi-section high-temperature heating sleeve 16, so that the raw materials can be more fully melted, moisture and air can be effectively discharged, and excessive internal pressure and raw material denaturation caused by too fast heating can be prevented; and then the raw materials after the air and moisture are discharged are cooled step by step and are kept warm after reaching the required temperature through the arrangement of the multi-section low-temperature heating sleeve 18, and the mode of temperature rise or temperature reduction step by step can effectively balance pressure, so that the raw materials are not denatured due to temperature difference, and the carbon rod is ensured to have excellent quality. And in addition, a high-temperature controller 17 and a low-temperature controller 19 are respectively arranged in the heating jacket of each section, so that the temperature is better controlled when the raw materials are heated, melted and cooled for solidification, and the higher quality of the product is ensured.

In this embodiment, the first-stage screw mechanism 5 and the second-stage screw mechanism 6 are both provided with steam exhaust devices 9. Preferably, the steam exhaust device 9 comprises a steam exhaust outer sleeve 20, a steam exhaust inner sleeve 21 and a plug 22, a steam exhaust channel 23 is formed between the steam exhaust inner sleeve 21 and the steam exhaust outer sleeve 20, the plug 22 plugs the upper end of the steam exhaust channel 23, an air release hole 24 is formed in the side wall of the steam exhaust outer sleeve 20, the air release hole 24 is communicated with the steam exhaust channel 23, and the air release hole 24 is arranged close to the plug 22. By adopting the structure of the steam exhaust device 9 provided by the embodiment, air can be effectively exhausted in the carbon rod extrusion process, and the melted raw materials can be well kept in the first screw stirrer 10 or the second screw stirrer 12. During its concrete use, moisture and air evaporation in the high temperature will the raw materials that melts form steam, steam can rise and finally discharge to the external world through gas outlet 24 along narrow and small exhaust passage 23, and the raw materials after melting because the great meeting deposit of density is below, though first screw rod agitator 10 or second screw rod agitator 12 are stirring constantly, but because exhaust passage 23 is too narrow and small, therefore the raw materials is difficult to get into, thereby remain the raw materials in inside effectively, reduce the loss of material, and stirring constantly can prevent that the material from blockking up exhaust passage 23, ensure that steam smoothly discharges.

In this embodiment, the first discharging device 8 includes a vertical first discharging channel 25 and an exhaust fan 26, a first exhaust port 27 is formed at a top end of the first discharging channel 25, the first exhaust port 27 is higher than the first screw stirrer 10, the exhaust fan 26 is installed in the first exhaust port 27, a feeding port 28 is formed on a side wall of the first discharging channel 25, a discharging port 29 is formed at a lower end of the first discharging channel 25, the feeding port 28 is communicated with a tail end of the first screw stirrer 10, and the discharging port 29 is communicated with a front end of the second screw stirrer 12. By adopting the structural design of the first blanking device 8 in the embodiment, a large amount of moisture and air exhausted from the tail end of the primary screw mechanism 5 can be quickly and efficiently exhausted upwards from the first exhaust port 27 under the action of the exhaust fan 26, and the ratio of the moisture to the air in the melted raw materials is greatly reduced.

In this embodiment, the feeding mechanism 4 includes a feeding channel 30 communicated with the barrel 3, a feeding screw 31 disposed in the feeding channel 30, a third driving device 32 for driving the feeding screw 31, and a second discharging device 33 located at the end of the feeding channel 30, a lower end of the second discharging device 33 is communicated with the first-stage screw mechanism 5, a second steam outlet 34 is opened at a top end of the second discharging device 33, and the second steam outlet 34 is higher than the feeding channel 30. This embodiment provides a concrete structure of feed mechanism 4, can smoothly and realize the feeding fast, prevents that the card pause phenomenon from taking place to guarantee that production can not be interrupted, improve production efficiency.

In this embodiment, the primary screw mechanism 5 further includes a heat-insulating cover 14, and the heat-insulating cover 14 covers the first screw agitator 10 and the high-temperature heating device. Because production demand, a process that rises gradually when one-level screw mechanism 5 is inside, consequently through the setting of cover 14 that keeps warm, can reduce thermal escape to play the effect that reduces the energy consumption, the energy saving, also can reduce simultaneously and keep the inside temperature fluctuation of one-level screw mechanism 5, provide better production environment.

When the utility model is used, the operation of all the workpieces is started and controlled by the master control device 2, the working personnel put the raw materials into the charging barrel 3, the raw materials in the charging barrel 3 enter the feeding mechanism 4 firstly, and the raw materials are conveyed into a second blanking device 33 rapidly, smoothly and uninterruptedly through a feeding screw 31 of a feeding mechanism 4, the raw material falls into the first screw agitator 10 while in the second discharging device 33 under the influence of gravity, due to the high temperature heating device, the raw material is melted in the first screw agitator 10 and is continuously agitated and moved, the melted raw material then falls into the second screw agitator 12 through the first blanking passage 25, due to the action of the low-temperature heating device, the raw materials are gradually cooled down in the second screw stirrer 12 and are finally kept at the set temperature, and then are solidified into carbon rods through the cooling and solidifying device 15 and are output from the carbon rod outlet 7.

Claims

1. The utility model provides a multistage screw rod mechanism of carbon rod extruder, includes the frame and sets up the total controlling means who is used for controlling each work piece moving in the frame, the frame on be equipped with the feed cylinder and the feed mechanism that are used for holding the raw materials, its characterized in that: the frame on still be equipped with one-level screw rod mechanism and second grade screw rod mechanism, one-level screw rod mechanism's front end with feed mechanism intercommunication, second grade screw rod mechanism's end is equipped with the carbon-point export, one-level screw rod mechanism be located second grade screw rod mechanism's top, just one-level screw rod mechanism's end through first unloader with second grade screw rod mechanism's front end intercommunication.

2. The multi-stage screw mechanism of a carbon rod extruder of claim 1, wherein: the primary screw mechanism comprises a first screw stirrer, a first driving device for driving the first screw stirrer and a high-temperature heating device arranged on the first screw stirrer;

3. The multi-stage screw mechanism of a carbon rod extruder of claim 2, wherein: the high-temperature heating device comprises a multi-section high-temperature heating sleeve and a high-temperature controller matched with each section of high-temperature heating sleeve; the low-temperature heating device comprises a multi-section low-temperature heating sleeve and a low-temperature controller matched with each section of low-temperature heating sleeve.

4. The multi-stage screw mechanism of a carbon rod extruder of claim 1, wherein: and the primary screw mechanism and the secondary screw mechanism are both provided with steam exhaust devices.

5. The multi-stage screw mechanism of a carbon rod extruder of claim 4, wherein: the steam exhaust device comprises a steam exhaust outer sleeve, a steam exhaust inner sleeve and a plug, a steam exhaust channel is formed in a gap between the steam exhaust inner sleeve and the steam exhaust outer sleeve, the plug seals the upper end of the steam exhaust channel, an air release hole is formed in the side wall of the steam exhaust outer sleeve, the air release hole is communicated with the steam exhaust channel, and the air release hole is formed close to the plug.

6. The multi-stage screw mechanism of a carbon rod extruder of claim 2, wherein: the first blanking device comprises a vertical first blanking channel and an exhaust fan, a first exhaust port is formed in the top end of the first blanking channel, the height of the first exhaust port is higher than that of the first screw stirrer, the exhaust fan is installed in the first exhaust port, a feeding port is formed in the side wall of the first blanking channel, a discharging port is formed in the lower end of the first blanking channel, the feeding port is communicated with the tail end of the first screw stirrer, and the discharging port is communicated with the front end of the second screw stirrer.

7. The multi-stage screw mechanism of a carbon rod extruder of claim 2, wherein: the feeding mechanism comprises a feeding channel communicated with the material barrel, a feeding screw rod arranged in the feeding channel, a third driving device for driving the feeding screw rod and a second blanking device positioned at the tail end of the feeding channel, the lower end of the second blanking device is communicated with the one-level screw rod mechanism, a second steam outlet is formed in the top end of the second blanking device, and the height of the second steam outlet is higher than that of the feeding channel.

8. The multi-stage screw mechanism of a carbon rod extruder of claim 3, wherein: the first-stage screw mechanism further comprises a heat-insulating cover, and the heat-insulating cover covers the first screw stirrer and the high-temperature heating device.