CN202709714U - Large-size PTFE (Polytetrafluoroethylene) pipe blank sintering furnace - Google Patents
Large-size PTFE (Polytetrafluoroethylene) pipe blank sintering furnace Download PDFInfo
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- CN202709714U CN202709714U CN 201220357163 CN201220357163U CN202709714U CN 202709714 U CN202709714 U CN 202709714U CN 201220357163 CN201220357163 CN 201220357163 CN 201220357163 U CN201220357163 U CN 201220357163U CN 202709714 U CN202709714 U CN 202709714U
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Abstract
The utility model discloses a pipe blank sintering furnace and provides a large-size PTFE (Polytetrafluoroethylene) pipe blank sintering furnace which is uniform in pipe blank sintering temperature, good in finished-product quality, large in quantity of pipe blanks sintered in single furnace, low in sintering energy consumption and low in cost and solves the technical problems of uneven heating, incapability of ensuring product quality, low quantity of pipe blanks sintered in a single furnace, large sintering energy consumption, high cost and the like in the pipe blank sintering process in the prior art. The large-size PTFE pipe blank sintering furnace comprises a furnace body, wherein a heating pipe is arranged on the side wall of a furnace body accommodating cavity, a fan is arranged on the top of the furnace body accommodating cavity, a bearing turntable is horizontally arranged at the bottom of the furnace body accommodating cavity, a horizontal turntable is arranged on the outer side of the bottom of the furnace body corresponding to the bearing turntable, the horizontal turntable is driven by the a driving motor to rotate, and the lower end of the bearing turntable passes through an opening at the bottom of the furnace and is then fixed on the horizontal turntable.
Description
Technical field
The utility model relates to a kind of pipe sintering furnace, relates in particular to a kind of pipe sintering quality good, the large-scale PTFE tube base sintering furnace that production efficiency is high.
Background technology
Large-scale PTFE tube base sintering is of crucial importance in molding process, temperature in the sintering process, the fluctuation of the process conditions such as cooling velocity directly has influence on the molecular weight of PTFE tube base, degree of crystallinity and porosity etc., and sintering process is finished fine or notly, also have influence on the residual stress in the PTFE tube base goods, to cause product deformation and even cracking therefore sintering process control is improper, and as the sheet material of corrosion protective lining, its degree of crystallinity and density are particularly crucial to the anti-permeability performance of corrosion resistant apparatus, the pipe sintering of using with corrosion protective lining in particular for high-end electronic chemical product, its tube blank size is generally Φ 520 * Φ 195 * 1550, every heavy 620Kg of blank, the cost of raw material of every stove reaches about 1,000,000 yuan, therefore the performance of sintering furnace is directly connected to the quality of quality of tube blank steel, also badly influence goods manufacturing cost, the temperature of sintering furnace, machine driving, sealings etc. are in case out of control or inefficacy will produce massive losses.Existing PTFE tube base sintering method generally is to be placed in the furnace chamber pipe is vertical or horizontal, again furnace chamber is heated up and heat, because pipe concentrates on the furnace chamber middle part, heating tube is positioned on the inwall of furnace chamber, and therefore single stove sintering pipe weight generally is no more than 300Kg, and single stove sintering pipe quantity is few, the sintering expense is high, energy consumption is large, and in the sintering process because the pipe inequality of being heated, so product quality often can't guarantee.
Chinese patent discloses a kind of coal-fired oil pipe sintering furnaces (CN2632607Y), it comprises body of heater, side at body of heater is provided with several burner hearths, burner hearth communicates with the blast pipe pipeline, on the body of heater with the burner hearth opposite side with the fire-resistant brick flue that has, its outer wall is connected with smoke discharging pipe, and body of heater is built-in with tramroad, is provided with fire wall between body of heater right side inwall and track.Although this device is simple in structure, be only applicable to the oil pipe sintering that oilfield downhole operation is used.
Summary of the invention
It is even that the utility model has mainly provided a kind of pipe sintering temperature, quality of finished product good, single stove sintering pipe quantity is many, the large-scale PTFE tube base sintering furnace that sintering energy consumption is low, expense is few, solved the inequality of being heated in the pipe sintering process that exists in the prior art, product quality can't guarantee, and single stove sintering pipe quantity is few, sintering energy consumption is large, expense high-technology problem.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of large-scale PTFE tube base sintering furnace, comprise body of heater, sidewall at the body of heater container cavity is provided with heating tube, top at the body of heater container cavity is provided with blower fan, bottom level at described body of heater container cavity is provided with load-bearing rotary table, be provided with horizontal rotating disc in the bottom of furnace body outside corresponding with load-bearing rotary table, horizontal rotating disc drives rotation by drive motors, and the lower end of load-bearing rotary table is fixed on the horizontal rotating disc after passing the opening of bottom of furnace body.During the pipe sintering, vertically be placed on pipe on the load-bearing rotary table, again by the heating tube on the body of heater container cavity sidewall to heating of pipe blank, because heating tube is positioned on the body of heater container cavity sidewall, therefore heat is spread to the centre by the periphery, blower fan by body of heater container cavity top mixes heat and keep flow regime in the body of heater container cavity again, drive the load-bearing rotary table synchronous rotary by the outer horizontal rotating disc of body of heater again simultaneously, be that pipe synchronous rotary on the load-bearing rotary table guarantees that the pipe heating status on the load-bearing rotary table is consistent, and when increasing pipe quantity, also can guarantee the uniformity of pipe sintering temperature, thereby guaranteed the quality of tube-blank finished-product, single stove sintering pipe quantity is many, sintering energy consumption reduces, and expense reduces.
As preferably, bottom vertical at described carrier is provided with some support columns, load-bearing rotary table is fixedly connected on the horizontal rotating disc by support column, is provided with insulation cover between load-bearing rotary table and horizontal rotating disc, and insulation cover interts to be fixed on the support column and with opening maintenance sealed rotational and is connected.Carrier is fixed on the horizontal rotating disc by support column, avoids transmitting more heat by carrier outside body of heater, reduces energy consumption; By at bottom of furnace body opening corresponding to support column insulation cover being set, prevent that further the heat external furnace body from transmitting energy efficient outward.
As more preferably, between described load-bearing rotary table and insulation cover, be provided with the gap, be evenly equipped with some passages at load-bearing rotary table, the load-bearing rotary table top corresponding with passage is covered with stay-warm case, and blower fan extends in the stay-warm case.Establish stay-warm case by cover above the pipe on the load-bearing rotary table, and blower fan is arranged on the top of stay-warm case, heat can carry over body of heater container cavity sidewall upwards under the effect of blower fan, gather under backward through blower fan, what carry over pipe axially passes passage on the load-bearing rotary table again, at last laterally shunting on insulation cover, carrying over the heating tube place that the gap between support column is back on the body of heater container cavity sidewall reheats, heat flows at the stay-warm case inner-outer circulation, guarantee that pipe is heated evenly unanimously, thereby further guaranteed the quality of tube-blank finished-product
As preferably, be provided with pneumatic sliding door in the front side of described body of heater.Pneumatic sliding door adopts the pneumatic power sealing, opens convenience and high-efficiency, seals reliable and secure.
As preferably, the bottom of described body of heater is provided with support, on the support that the underrun ball load-bearing bearing element of horizontal rotating disc connects.On the support of horizontal rotating disc by the connection of ball load-bearing bearing element, improved the stability of horizontal rotating disc, guaranteed that the pipe on the load-bearing rotary table is in plumbness all the time in sintering process, guaranteed that pipe is heated evenly unanimously.
As preferably, be provided with exhaust outlet at the top of described body of heater.Discharge outside the body of heater by the harmful exhaust that exhaust outlet can produce pipe in the sintering process, and unify drainage to discharging ground by pipeline.
As preferably, be provided with main shaft in the middle bottom of described horizontal rotating disc, drive motors and main shaft are that belt-type is in transmission connection.Belt transmission operates steadily, and cost is low.
Therefore, large-scale PTFE tube base sintering furnace of the present utility model has following advantage: the large high-temperature load-bearing rotary table, and load-bearing reaches 8000Kg, at most can 9 Φ 520 * Φ 195 * 1550 pipes of single stove vertical rotating sintering; Fire door adopts the large-scale pneumatic sliding door, and convenience and high-efficiency is opened in the pneumatic power sealing, seals reliable and secure; Temperature homogeneity is good in the body of heater, the temperature difference≤± 3 ℃, and temperature stability is high: the temperature difference≤± 2 ℃; Conventional sintering list stove weight improves 3 times relatively, has improved production efficiency, reduces solution situation energy consumption, and tube blank size is large, and availability ratio of the armor plate improves 5%.
Description of drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is left view shown in Figure 1;
Fig. 3 shown in Figure 2ly removes A behind the bad pipe to structural representation.
The specific embodiment:
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As depicted in figs. 1 and 2, a kind of large-scale PTFE tube base sintering furnace of the present utility model, comprise square body of heater 1, the support 14 of frame structure is housed in the bottom of body of heater 1, pneumatic sliding door 13 is equipped with in the front side of body of heater 1, be provided with an exhaust outlet 16 at the top of body of heater 1, the outside ladle cover of body of heater 1 has insulation material, as shown in Figure 3, on three sidewalls of body of heater 1 container cavity, a snakelike heating tube 2 is housed respectively, heating tube 2 is connected electrically on body of heater 1 power supply outward, be provided with the load-bearing rotary table 4 of a circle at the bottom level of body of heater 1 container cavity, uniform several passages 12 on load-bearing rotary table 4, cover is established the stay-warm case 9 of a column above load-bearing rotary table 4, nine pipes 10 have vertically been placed on the load-bearing rotary table 4 in stay-warm case 9, pipe 10 specifications are: Φ 520 * Φ 195 * 1550(mm), wherein eight pipes 10 evenly distribute at the circumferencial direction of load-bearing rotary table 4, an other middle part that is positioned at load-bearing rotary table 4, at body of heater 1 top four blower fans 3 are housed, blower fan 3 leaves extend in the stay-warm case 9, at the support 14 corresponding with load-bearing rotary table 4 horizontal rotating disc 5 is housed, the underrun ball load-bearing bearing 15 of horizontal rotating disc 5 rolls on the support 14 that connects, the bottom of horizontal rotating disc 5 is coaxial fixes a main shaft 17, fixing a drive motors 6 with main shaft 17 parallel relative supports 14, drive motors 6 is in transmission connection for belt-type with main shaft 17, in body of heater 1 bottom corresponding with load-bearing rotary table 4 with opening 11, insulation cover 8 is housed in opening 11, insulation cover 8 keeps sealing by sealing ring and opening 11 and can rotate along opening 11 edges, in the bottom vertical of carrier 4 some support columns 7 have been installed, the lower end of support column 7 is passed insulation cover 8 and is fixedly connected on the horizontal rotating disc 5, and load-bearing rotary table 4 and 8 gaps with 180mm of insulation cover.
During use, start drive motors 6, drive motors 6 drives.Horizontal rotating disc 5 rotations, horizontal rotating disc 5 drives nine pipes, 10 rotations on load-bearing rotary table 4 and the load-bearing rotary table 4 again, connect heating tube 2 power supplys and start blower fan 3, heat can carry over body of heater 1 container cavity sidewall upwards under the effect of blower fan 3, gather under backward through blower fan 3, what carry over pipe 10 axially passes passage 12 on the load-bearing rotary table 4 again, at last laterally shunting on insulation cover 8, carrying over heating tube 2 places that the gap of 7 of support columns is back on the body of heater 1 container cavity sidewall reheats, heat is flowed at stay-warm case 8 inner-outer circulations, guarantee that pipe 10 is heated evenly unanimously.
Specific embodiment described herein only is to design of the present utility model explanation for example.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (7)
1. one kind large-scale PTFE tube base sintering furnace, comprise body of heater (1), sidewall at body of heater (1) container cavity is provided with heating tube (2), top at body of heater (1) container cavity is provided with blower fan (3), it is characterized in that: the bottom level at described body of heater (1) container cavity is provided with load-bearing rotary table (4), be provided with horizontal rotating disc (5) in body of heater (1) bottom outside corresponding with load-bearing rotary table (4), horizontal rotating disc (5) drives rotation by drive motors (6), and the lower end of load-bearing rotary table (4) is fixed on the horizontal rotating disc (5) after passing the opening (11) of body of heater (1) bottom.
2. large-scale PTFE tube base sintering furnace according to claim 1, it is characterized in that: the bottom vertical at described carrier (4) is provided with some support columns (7), load-bearing rotary table (4) is fixedly connected on the horizontal rotating disc (5) by support column (7), be provided with insulation cover (8) between load-bearing rotary table (4) and horizontal rotating disc (5), insulation cover (8) is interspersed to be fixed on support column (7) upward and to keep sealed rotational to be connected with opening (11).
3. large-scale PTFE tube base sintering furnace according to claim 2, it is characterized in that: between described load-bearing rotary table (4) and insulation cover (8), be provided with the gap, be evenly equipped with some passages (12) at load-bearing rotary table (4), load-bearing rotary table (4) top corresponding with passage (12) is covered with stay-warm case (9), and blower fan (3) extends in the stay-warm case (9).
4. it is characterized in that: be provided with pneumatic sliding door (13) in the front side of described body of heater (1) according to claim 1 and 2 or 3 described large-scale PTFE tube base sintering furnaces.
5. according to claim 1 and 2 or 3 described large-scale PTFE tube base sintering furnaces, it is characterized in that: the bottom of described body of heater (1) is provided with support (14), and the underrun ball load-bearing bearing (15) of horizontal rotating disc (5) rolls on the support (14) that connects.
6. it is characterized in that: be provided with exhaust outlet (16) at the top of described body of heater (1) according to claim 1 and 2 or 3 described large-scale PTFE tube base sintering furnaces.
7. according to claim 1 and 2 or 3 described large-scale PTFE tube base sintering furnaces, it is characterized in that: be provided with main shaft (17) in the middle bottom of described horizontal rotating disc (5), drive motors (6) is in transmission connection for belt-type with main shaft (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220357163 CN202709714U (en) | 2012-07-23 | 2012-07-23 | Large-size PTFE (Polytetrafluoroethylene) pipe blank sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220357163 CN202709714U (en) | 2012-07-23 | 2012-07-23 | Large-size PTFE (Polytetrafluoroethylene) pipe blank sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709714U true CN202709714U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220357163 Expired - Fee Related CN202709714U (en) | 2012-07-23 | 2012-07-23 | Large-size PTFE (Polytetrafluoroethylene) pipe blank sintering furnace |
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| CN (1) | CN202709714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385607A (en) * | 2014-09-25 | 2015-03-04 | 沈阳北阳氟塑料有限公司 | Polytetrafluoroethylene sintering apparatus and sintering method |
-
2012
- 2012-07-23 CN CN 201220357163 patent/CN202709714U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385607A (en) * | 2014-09-25 | 2015-03-04 | 沈阳北阳氟塑料有限公司 | Polytetrafluoroethylene sintering apparatus and sintering method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160523 Address after: 132021 No. 1288 North dragon road, Longtan District, Jilin, Jilin Patentee after: Jilin forward industry and Trade Co., Ltd. Address before: 324004 Quzhou province hi tech park, North Road, No. 6 Hua Yin Patentee before: Zhejiang Dongfu Plastics Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20160723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |