CN203323572U

CN203323572U - Ceramic inner barrel of cement preheater

Info

Publication number: CN203323572U
Application number: CN2013201022507U
Authority: CN
Inventors: 邱建泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-27
Filing date: 2013-02-27
Publication date: 2013-12-04
Anticipated expiration: 2023-02-27

Abstract

A ceramic inner barrel of a cement preheater is formed by a plurality of long and straight ceramic plates with circular arc-shaped cross sections in a surrounding and closing manner, a plurality of holes are formed in the ceramic plates longitudinally, a corresponding heat-resisting screw rod is arranged in each hole, the ceramic plates are connected in series with and fixed onto the flange of a preheater through the heat-resisting screw rods, the bottom end of the inner barrel is connected integrally by a closed heat-resisting steel ring or a plurality of ceramic pins, the ceramic inner barrel of the cement preheater is impact resisting and abrasion resisting and has a longer service life, The integrity of the inner barrel is excellent, the probability of wind entering is low, the work volume of installation is low, and the maintenance and the replacement are convenient.

Description

Ceramics internal cylinder of cement preheater

Technical field

The utility model relates to a kind of ceramic inner barrel of cement preheater, particularly relates to a kind of structure relatively simple, can bear the Combined ceramic inner core that washes away and can tolerate at a high speed high temperature.

Background technology

At present, well-known, in cement industry, the inner core of cement cyclone preheater adopts high-temperature refractory steel usually, but, under the hot operation state, the high speed of the anti-dust of heat resisting steel is washed away poor ability, oxidated effect again, under normal circumstances, the common life-span of heat resisting steel inner core is only approximately about 1 year; And the inner core made from refractory ceramics that latest developments are got up, but its complex structure, linkage element quantity is too many, has the little eyelet that quantity is a lot of on barrel, and easily falls piece, causes string wind, affects the preheater separative efficiency, and artificial installation workload is large; Ceramic component difficulty of processing as ceramic screw rod and so on is large for another example, in installation and use procedure, easily causes damage, very difficult when inner core maintenance and replacing.

Summary of the invention

The purpose of this utility model is, overcome the deficiency that heat resisting steel or existing ceramic material inner core exist, thereby provide a kind of ceramics internal cylinder of cement preheater, technical problem to be solved is to make its single ceramic component structure relatively simple, ceramic component intensity significantly strengthens, can significantly improve production and the installation effectiveness of ceramic component, be very suitable for practicality.

Thinking of the present utility model and principle are: for ease of producing, using and install, ceramic inner barrel is divided into to some equal portions, its method is to cut as some width along circumference equal dividing, and every width is divided into some for the straight ceramic wafer of length of circular arc; For the ease of installing, form one or more pilot hole on ceramic wafer; During installation, on the heat-resisting screw rod of corresponding radical, put into successively some ceramic wafers, be a width during height that the height that ceramic wafer superposes is inner core, then screw rod top is connected with the preheater flange, screw rod can be fixed with nut also available voussoir.Each width ceramic wafer is installed, interlock mutually between upper and lower ceramic wafer, and occlusion portion is filled with the high temperature filler; While with each width, being combined into cylindrical shell, between the ceramic wafer of left and right, also interlock mutually, also fill with the high temperature filler between each width; Good in order to guarantee the ceramic inner barrel bulk strength, the embedding bottom of ceramic inner barrel has a closed heat-resisting steel ring, after filling high temperature filler, with ceramic capping, is sealed; Or with ceramic pin, ceramic capping locking is connected as one lower end.

Particularly, the utility model is taked following technical scheme:

A kind of ceramics internal cylinder of cement preheater, the straight ceramic wafer of its length that is circular arc by some cross sections encloses cylindric forming.

Longitudinally have some holes on described ceramic wafer, the corresponding heat-resisting screw rod of configuration in each hole.

A wherein side of described ceramic wafer left and right sides has recess one, and another side has the protuberance one with described recess one interlock, and a wherein end of upper and lower side has recess two, and another end has the protuberance two with described recess two interlocks, and high temperature resistant filler is filled in interlock place.

Preferably, in the embedding bottom of ceramic inner barrel, a heat-resisting steel ring of integral body is arranged, and is sealed with ceramic capping, with ceramic pin by ceramic capping locking and connect as one with lower end.

Preferably, described heat-resisting screw rod upper end connects the preheater flange, and is fixed on the preheater flange with nut or with voussoir.

Preferably, described inner diameter of steel flue is 5000 millimeters of Φ 100～Φ, and height is at 500～8000 millimeters, thickness is in the scope of 20～100 millimeters, especially described inner diameter of steel flue is 4000 millimeters of Φ 1000～Φ, and height is at 1000～6000 millimeters, and thickness is in the scope of 50～70 millimeters.

Preferably, described inner core cuts as some equal portions along circumference equal dividing, each equal portions is a width, the arc length of every width is in the scope of 200～2000 millimeters, every width in height is divided into some, every tile height is in the scope of 200～1500 millimeters, and the diameter of especially described ceramic wafer institute perforate is in the scope of 50 millimeters of Φ 20～Φ, and the diameter of described heat-resisting screw rod is in the scope of 45 millimeters of Φ 15～Φ.

Described ceramic wafer is silicon carbide ceramics, or silicon nitride ceramics, or brown corundum, or the inorganic material such as other heat-resistant, wear-resistant.

By technique scheme, the utility model ceramic inner barrel at least has following advantages and beneficial effect: ceramic wafer is simple in structure, and the steel mold kind of producing ceramic wafer only needs three covers; The ceramic wafer structural strength is high, and resistance to erosion is wear-resistant, long service life; The inner core good integrity, be difficult for string wind; Installation workload is little, also is convenient to maintenance and changes.

Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, thereby can be implemented according to the content of specification, and for above and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the section diagrammatic elevation view of the utility model ceramic inner barrel.

Fig. 2 is the section diagrammatic top view of the utility model ceramic inner barrel.

Fig. 3 is A partial enlarged drawing in Fig. 2, i.e. the utility model ceramic inner barrel ceramic wafer left and right interlock enlarged drawing.

Fig. 4 is B partial enlarged drawing in Fig. 1, i.e. one of section enlarged diagram of the utility model ceramic inner barrel lower end.

Fig. 5 is C partial enlarged drawing in Fig. 1, two of the section enlarged diagram of the utility model ceramic inner barrel lower end.

Fig. 6 is D partial enlarged drawing in Fig. 1, i.e. the upper and lower interlock figure of the utility model ceramic inner barrel ceramic wafer.

Fig. 7 is E partial enlarged drawing in Fig. 1, i.e. the fixing schematic diagram of the heat-resisting threaded spindle cap nut of the utility model ceramic inner barrel.

Fig. 8 is F partial enlarged drawing in Fig. 1, i.e. the fixing schematic diagram of the heat-resisting screw rod voussoir of the utility model ceramic inner barrel.

Fig. 9 is the single middle part of the utility model ceramic inner barrel ceramic wafer section diagrammatic top view.

Figure 10 is the single middle part of the utility model ceramic inner barrel ceramic wafer section diagrammatic elevation view.

1. bottom ceramic wafers in figure, 2. middle part ceramic wafer, 3. top ceramic wafer, 4. heat-resisting screw rod, 5. ceramic capping, 6. high temperature filler, 7. closed heat-resisting steel ring, 8. nut, 9. voussoir, 10. ceramic pin, 11. preheater flanges.

The specific embodiment

The section diagrammatic elevation view of the utility model ceramic inner barrel as shown in Figure 1, the demonstration ceramic inner barrel is faced cross-section structure, and demonstration ceramic inner barrel diameter and height, ceramic inner barrel bottom ceramic wafer 1 and top ceramic wafer 3 structures are had any different, middle polylith middle part ceramic wafer 2 structures are the same, successively bottom ceramic wafer 1, polylith middle part ceramic wafer 2, top ceramic wafer 3 are become to a width after being concatenated into desired height with heat-resisting screw rod 4, upper and lower occlusion portion is filled with the high temperature filler, then hangs on preheater flange 11 and is fixed.

Be the section diagrammatic top view of the utility model ceramic inner barrel as shown in Figure 2, ceramic inner barrel is overlooked cross-section structure, and shows the ceramic inner barrel diameter, on the ceramic inner barrel diameter, is to form a full circle by several ceramic wafers, between each width, with the high temperature filler, fills.

Be the utility model ceramic inner barrel ceramic wafer left and right interlock enlarged drawing as shown in Figure 3, show that every width ceramic wafer is protuberance one on one side, another side is recess one, and left and right interlock situation, and in the middle of ceramic wafer, string has heat-resisting screw rod 4.

Be one of generalized section of the utility model ceramic inner barrel lower end as shown in Figure 4, show the bottom ceramic wafer 1 of every width ceramic wafer or all enclosed by the heat-resisting steel ring 7 of closure, strengthen ceramic inner barrel lower end intensity.

Be as shown in Figure 5 the utility model ceramic inner barrel lower end generalized section two, show the bottom ceramic wafer 1 of every width ceramic wafer or all enclosed by ceramic pin 10 and ceramic contiguous block, strengthen ceramic inner barrel lower end intensity.

The upper and lower interlock figure of the utility model ceramic inner barrel ceramic wafer as shown in Figure 6, show every ceramic wafer upper and lower between an end be protuberance two, the other end is recess two, and upper and lower interlock situation, in the middle of ceramic wafer, string has heat-resisting screw rod 4.

Be fixedly schematic diagram of the heat-resisting threaded spindle cap nut of the utility model ceramic inner barrel as shown in Figure 7, be one of method of fixing every width ceramic wafer, and every width ceramic wafer is hung on preheater flange 11.

Be fixedly schematic diagram of the heat-resisting screw rod voussoir of the utility model ceramic inner barrel as shown in Figure 8, be two of the method for fixing every width ceramic wafer, and every width ceramic wafer is hung on preheater flange 11.

Be the utility model ceramic inner barrel middle part single ceramic plate section diagrammatic top view as shown in Figure 9, show that every ceramic wafer is boss on one side, another side is concave station, and there are a plurality of circular holes centre, and for going here and there heat-resisting screw rod 4, another strip hole is in order to alleviate ceramic wafer weight.

Be the utility model ceramic inner barrel middle part single ceramic plate section diagrammatic elevation view as shown in figure 10, show that on the ceramic wafer 2 of middle part, next end is boss, the other end is concave station.

Implementation process of the present utility model is: at first bottom ceramic wafer 1 is put on the heat-resisting screw rod 4 with the corresponding radical in hole and be fixed, put into again polylith middle part ceramic wafer 2, last top ceramic wafer 3 endings of topmost putting into, convex-concave interlock place between ceramic wafer is upper and lower is filled with high temperature filler 6, be a width during height that the height superposeed is inner core, screw rod top is connected with preheater flange 11, and screw rod can be fixing with nut 8 also available voussoir 9.When the installation of each width ceramic wafer, between the ceramic wafer left and right, with high temperature filler 6, fill, under the hot operation state, the high temperature filler can keep the ceramic inner barrel globality.After one circle has combined, embed a closed heat-resisting steel ring 7 in the bottom of ceramic inner barrel, the ceramic capping 5 of filling high temperature filler 6 rear use is sealed; Or with ceramic pin 10, ceramic capping 5 lockings are connected as one lower end.If in use wherein one or more are damaged, only the compound ceramic plate of its damage need be taken off, repaired or changed and got final product.

The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art are not within breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.

Claims

1. a ceramics internal cylinder of cement preheater, it is characterized in that: the straight ceramic wafer of its length that is circular arc by some cross sections encloses cylindric forming, longitudinally have some holes on described ceramic wafer, the corresponding heat-resisting screw rod of configuration in each hole, described heat-resisting screw rod upper end connects the preheater flange, and be fixed on the preheater flange with nut or with voussoir, embedding bottom at ceramic inner barrel has a heat-resisting steel ring of integral body, and sealed with ceramic capping, with ceramic pin, ceramic capping locking is connected as one with lower end.

2. ceramic inner barrel according to claim 1, it is characterized in that: a wherein side of described ceramic wafer left and right sides has recess one, another side has the protuberance one with described recess one interlock, a wherein end of upper and lower side has recess two, another end has the protuberance two with described recess two interlocks, and high temperature resistant filler is filled in interlock place.

3. ceramic inner barrel according to claim 1 is characterized in that: described inner diameter of steel flue is 5000 millimeters of Φ 100～Φ, and height is at 500～8000 millimeters, and thickness is in the scope of 20～100 millimeters.

4. ceramic inner barrel according to claim 1 is characterized in that: described inner diameter of steel flue is 4000 millimeters of Φ 1000～Φ, and height is at 1000～6000 millimeters, and thickness is in the scope of 50～70 millimeters.

5. ceramic inner barrel according to claim 1, it is characterized in that: described inner core cuts as some equal portions along circumference equal dividing, each equal portions is a width, the arc length of every width is in the scope of 200～2000 millimeters, every width in height is divided into some, and every tile height is in the scope of 200～1500 millimeters.

6. ceramic inner barrel according to claim 1 is characterized in that: the diameter of described ceramic wafer institute perforate is in the scope of 50 millimeters of Φ 20～Φ, and the diameter of described heat-resisting screw rod is in the scope of 45 millimeters of Φ 15～Φ.

7. ceramic inner barrel according to claim 1, it is characterized in that: described ceramic wafer is silicon carbide ceramics, or silicon nitride ceramics, or brown corundum.