CN213865975U - Energy-saving preheater with hydraulic pushing head device - Google Patents
Energy-saving preheater with hydraulic pushing head device Download PDFInfo
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- CN213865975U CN213865975U CN202022817616.1U CN202022817616U CN213865975U CN 213865975 U CN213865975 U CN 213865975U CN 202022817616 U CN202022817616 U CN 202022817616U CN 213865975 U CN213865975 U CN 213865975U
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Abstract
The utility model discloses an energy-saving preheater with hydraulic head pushing device, which comprises a heat exchange chamber, wherein the top of the heat exchange chamber is provided with a charging pipe and an exhaust pipe, the heat exchange chamber is of a cylindrical structure, the bottom of the heat exchange chamber is provided with an opening, a wedge-shaped cavity is arranged below the opening, a discharge port is arranged on the wedge-shaped cavity, and the discharge port is communicated with a rotary kiln through a discharging chute; the wedge-shaped cavity is provided with a hydraulic pushing head device for pushing the preheated material into the rotary kiln from the discharge hole, wherein the pushing head consists of a rectangular structure and a hemispherical structure arranged at the front end of the upper surface of the rectangular structure, and the pushing head is integrally formed by adopting heat-resistant alloy cast steel. The utility model discloses a change the structure of heat exchange chamber, make the material of adding the cylinder heat exchange chamber even, the material can fully realize the heat exchange with the flue gas that the rotary kiln produced, and the increase of production when the energy saving consumes, in addition the utility model discloses the stable in structure that pushes away does not warp under the high temperature user state, does not ftracture.
Description
Technical Field
The utility model belongs to the technical field of production active lime equipment, concretely relates to energy-conserving pre-heater with hydraulic pressure device of cutting somebody's hair.
Background
The active lime calcining process comprising three main machines, namely a vertical preheater, a rotary kiln and a vertical cooler, has a dominant position in the lime production industry in China, wherein the preheater is a main device in a rotary kiln limestone calcining process system, limestone is fully preheated in the preheater and has a temperature of about 960 ℃, partial limestone is decomposed and gradually enters the rotary kiln to be calcined to produce active lime, namely the heat exchange effect of the limestone in the preheater directly influences the yield of the active lime, and the method also relates to the full utilization of heat energy and the normal use of subsequent process equipment of the system. Therefore, people generally pay attention to the reasonability of the structure and parameter design of the preheater.
At present, the heat exchange chamber part among the vertical pre-heater of prior art is a square box structure, it preheats the material small, the feed bin links up the unloading pipe, it is inhomogeneous when reinforced, it is not smooth, when material and reverse hot gas flow exchange, the heat energy absorption rate is low, there is the material uneven problem of the central heating of material that piles up when exchanging with hot flue gas, the rotary kiln calcines a large amount of flue gas waste heat that produces and does not carry out effective recycle, lead to energy loss, current push head is mostly the steel casting of half box structure in addition, structural stability is poor, shear capacity is poor, appear warping easily under high temperature user state, phenomenons such as fracture, the serious influence pushes head life, production has been influenced, and the production cost is increased.
In view of the above, the present inventors have devised an energy-saving vertical preheater with a hydraulic pushing head device to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that exists among the prior art, the utility model aims to provide an energy-conserving pre-heater with hydraulic pressure device of cutting somebody's hair, this pre-heater makes the material of adding the cylinder heat exchange chamber even through changing the heat exchange chamber structure, and the material can maximize when calcining the reverse hot gas flow exchange of flue gas waste heat that produces with the rotary kiln like this, realizes the heat exchange, in addition the utility model discloses multiaspect hemisphere structure of cutting somebody's hair, when receiving high temperature gas, non-deformable has improved the life of cutting somebody's hair.
The to-be-solved technical problem of the utility model is realized through following technical scheme: an energy-saving vertical preheater with a hydraulic pushing head device comprises a heat exchange chamber, wherein a feeding pipe and an exhaust pipe are arranged at the top of the heat exchange chamber, the heat exchange chamber is of a cylindrical structure, an opening is formed in the bottom of the heat exchange chamber of the cylindrical structure, a wedge-shaped cavity is arranged below the opening, a discharge hole is formed in the wedge-shaped cavity, and the discharge hole is communicated with a rotary kiln through a discharging chute;
a hydraulic pushing head device is arranged on the wedge-shaped cavity and used for pushing the preheated material into the rotary kiln from the discharge hole, and the wedge-shaped cavity is formed by bricking refractory materials;
the hydraulic push head device comprises a push rod, a push head and a hydraulic driving device, the push head is arranged on the bottom surface of the wedge-shaped cavity, the push rod is inserted into a guide hole formed in the wedge-shaped cavity, the inner side end of the push rod is connected with the push head, the hydraulic driving device is arranged on the outer side of the wedge-shaped cavity, the output end of the hydraulic driving device is connected with the outer side end of the push rod, and the hydraulic driving device drives the push head to do reciprocating linear motion on the bottom surface of the wedge-shaped cavity through driving the push rod and is used for continuously pushing the preheated materials into the rotary kiln.
Furthermore, the hydraulic driving device comprises a rectangular frame and a hydraulic cylinder, the upper end of the rectangular frame is hinged to the outer wall of the cylindrical heat exchange chamber, the lower end of the rectangular frame is hinged to a piston rod of the hydraulic cylinder, the outer side end of the push rod is hinged to the rectangular frame, the hydraulic cylinder drives the rectangular frame to move, and the rectangular frame pushes the push rod to do linear motion.
Furthermore, the pushing head consists of a rectangular structure and a hemispherical structure arranged at the front end of the upper surface of the rectangular structure, and an arc-shaped groove is formed at the front end of the hemispherical structure;
the rectangular structure and the hemispherical structure are integrally formed.
Furthermore, the material of the push head is heat-resistant alloy cast steel.
Furthermore, the included angle alpha between the bottom surface of the wedge-shaped cavity and the horizontal plane ranges from 10 degrees to 12 degrees.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to an energy-conserving vertical pre-heater with hydraulic pressure device of pushing head, this pre-heater changes into cylindrical structure through the square box heat exchange chamber that will have now, the loading capacity of material has been increased under the same conditions like this on the one hand, on the other hand material gets into the cylinder heat exchange chamber more even, the flue gas waste heat that the rotary kiln produced can realize the heat exchange with the cubic material in the cylinder heat exchange chamber fully like this, cubic material rises gentle decomposition with higher speed, the increase of production when the energy saving consumes, the temperature of flue gas waste heat has been reduced simultaneously, be convenient for exhaust purification.
2. The utility model relates to an energy-conserving vertical pre-heater with hydraulic pressure device of pushing head, wherein, the pushing head is multiaspect semi-spherical structure, specifically constitute at the semi-spherical structure of rectangle structure upper surface front end by rectangle structure and setting, the depressed groove that is dustpan shape is seted up to semi-spherical structure's front end, and rectangle structure and semi-spherical structure are by heat-resisting alloy cast steel integrated into one piece, through above setting, can improve the volume that the single promoted the material on the one hand, in addition on the one hand because the pushing head is semi-spherical structure, when receiving high-temperature gas, be heated evenly, pushing head non-deformable, the fracture, the life who pushes head has been improved, the downtime is reduced, the production cost is saved, and the labor productivity is improved.
3. The utility model relates to an energy-conserving vertical pre-heater with hydraulic pressure device of cutting somebody's hair, pneumatic cylinder are power, have the stroke far away, and the operation is reliable, energy-conserving characteristics.
Drawings
FIG. 1 is a schematic structural view of an energy-saving preheater with a hydraulic pushing head device according to the present invention;
fig. 2 is a top view of the pushing head of the present invention.
In the figure: 1. a heat exchange chamber; 2. a wedge-shaped cavity; 3. a discharge port; 4. a hydraulic pusher device; 41. a push rod; 42. Pushing the head; 43. a hydraulic drive device; 421. a rectangular structure; 422. a hemispherical structure; 431. a rectangular frame; 432. A hydraulic cylinder; 4221. an arc-shaped groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It is to be understood that such description is merely illustrative and not restrictive of the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Example (b): referring to fig. 1, an energy-saving vertical preheater with a hydraulic pushing head device comprises a heat exchange chamber 1, wherein a feeding pipe and an exhaust pipe (not shown in the figure) are arranged at the top of the heat exchange chamber 1, the feeding pipe is communicated with a material bin and is used for filling materials, and an air purification device is arranged on the exhaust pipe so as to meet the national environmental protection requirement of the discharged gas symbol. Wherein, the heat exchange chamber is the cylinder structure, 1 bottom of the heat exchange chamber of cylinder structure is provided with the opening, open-ended below is provided with wedge chamber 2, be provided with discharge gate 3 on the wedge chamber 2, discharge gate 3 passes through unloading chute and rotary kiln intercommunication, through the aforesaid setting, the flue gas waste heat that the rotary kiln calcined the production can get into in the heat exchange chamber 1 of cylinder structure smoothly, and take place the heat exchange with the cubic lime stone of piling up in the heat exchange chamber 1 of cylinder structure, thereby bulk material intensification and decomposition accelerate, energy saving consumes, the increase of production.
The utility model discloses an installation hydraulic pressure device 4 that pushes away on wedge chamber 2 for in the lime stone material after will preheating pushes away the rotary kiln from discharge gate 3, the bottom surface and the horizontal plane contained angle alpha scope of preferred wedge chamber 2 are 10 ~ 12, in order to utilize the characteristic of inclined plane laborsaving to unload the lime stone material, wedge chamber 2 adopts the refractory material brick to build and forms.
Specifically, the hydraulic pushing head device 4 comprises a pushing rod 41, a pushing head 42 and a hydraulic driving device 43, the pushing head 42 is arranged on the bottom surface of the wedge-shaped cavity 2, the pushing rod 41 is inserted into a guide hole formed in the wedge-shaped cavity 2, the inner side end of the pushing head is connected with the pushing head 42, the hydraulic driving device 43 is installed on the outer side of the wedge-shaped cavity 2, the output end of the hydraulic driving device is connected with the outer side end of the pushing rod 41, and the hydraulic driving device 43 drives the pushing head 42 to make reciprocating linear motion on the bottom surface of the wedge-shaped cavity 2 through driving the pushing rod 41, so that preheated limestone materials are continuously pushed into the rotary kiln.
The hydraulic driving device 43 comprises a rectangular frame 431 and a hydraulic cylinder 432, the upper end of the rectangular frame 431 is hinged with the outer wall of the cylindrical heat exchange chamber 1, the lower end of the rectangular frame 431 is hinged with the end part of a piston rod of the hydraulic cylinder 432, the outer side end of the push rod 41 is hinged with the rectangular frame 431, the hydraulic cylinder 432 drives the rectangular frame 431 to move, and the rectangular frame 431 pushes the push rod 41 to move linearly. Preferably, the hydraulic driving device 43 can precisely control the pushing action period and the pushing amount of the pushing rod through a computer (or a PLC).
As shown in FIG. 2, the pushing head 42 of the present invention is a multi-surface hemispherical structure, and the hemispherical body is adopted because when the pushing head is operated to receive high temperature gas, the surface of the sphere is heated uniformly, and the pushing head is not easy to deform or crack. The pushing head 42 is specifically composed of a rectangular structure 421 and a semispherical structure 422 arranged at the front end of the upper surface of the rectangular structure 421, an arc-shaped groove 4221 is formed at the front end of the semispherical structure 422, and the arc-shaped groove 4221 is shaped like a dustpan, so that preheated limestone materials can be pushed more greatly, and the pushing efficiency is improved.
Preferably, the pushing head 42 is integrally formed by heat-resistant alloy cast steel, so as to improve the strength, for example, 34Cr24Ni7sir is selected to ensure that it can normally work at a high temperature of about 1000 ℃.
The utility model discloses the pre-heater working process does: limestone in the feed bin is filled into the cylindrical heat exchange chamber in the preheater through the charging pipe, the lower part of the heat exchange chamber is provided with a group of hydraulic pushing head devices, a hydraulic cylinder is automatically opened by a control system to drive a rectangular frame, and then a push rod is pushed, so that a multi-surface hemispherical pushing head on a wedge-shaped cavity is driven, the preheated limestone is pushed to further exchange heat with flue gas in the preheater, the limestone is heated and decomposed with higher speed, and finally the limestone enters the rotary kiln through a discharge port and a discharging chute to be calcined, and meanwhile, the temperature of waste gas is reduced and then is purified by a purifying device and then is discharged into the atmosphere.
Through experimental, use the utility model discloses energy-conserving vertical pre-heater has obviously reduced product unit ton energy consumption, has improved the output about 20%, has improved the quality of product, and the practicality is strong.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (5)
1. The utility model provides an energy-conserving pre-heater with hydraulic pressure device of cutting somebody's hair, includes heat exchange chamber (1), heat exchange chamber (1) top is provided with filling tube and blast pipe, its characterized in that: the heat exchange chamber (1) is of a cylindrical structure, an opening is formed in the bottom of the heat exchange chamber (1) of the cylindrical structure, a wedge-shaped cavity (2) is formed below the opening, a discharge hole (3) is formed in the wedge-shaped cavity (2), and the discharge hole (3) is communicated with the rotary kiln through a discharging chute;
a hydraulic pushing head device (4) is arranged on the wedge-shaped cavity (2) and used for pushing the preheated material into the rotary kiln from the discharge hole (3), and the wedge-shaped cavity (2) is formed by bricking refractory materials;
the hydraulic push head device (4) comprises a push rod (41), a push head (42) and a hydraulic driving device (43), the push head (42) is arranged on the bottom surface of the wedge-shaped cavity (2), the push rod (41) is inserted into a guide hole formed in the wedge-shaped cavity (2), the inner side end of the push rod is connected with the push head (42), the hydraulic driving device (43) is arranged on the outer side of the wedge-shaped cavity (2), the output end of the hydraulic driving device is connected with the outer side end of the push rod (41), and the hydraulic driving device (43) drives the push head (42) to do reciprocating linear motion on the bottom surface of the wedge-shaped cavity (2) through the driving push rod (41) and is used for continuously pushing preheated materials into the rotary kiln.
2. The energy-saving preheater with the hydraulic pushing head device as claimed in claim 1, wherein: the hydraulic driving device (43) comprises a rectangular frame (431) and a hydraulic cylinder (432), the upper end of the rectangular frame (431) is hinged with the outer wall of the cylindrical heat exchange chamber (1), the lower end of the rectangular frame is hinged with a piston rod of the hydraulic cylinder (432), the outer side end of the push rod (41) is hinged with the rectangular frame (431), the hydraulic cylinder (432) drives the rectangular frame (431) to move, and the rectangular frame (431) pushes the push rod (41) to do linear motion.
3. The energy-saving preheater with the hydraulic pushing head device as claimed in claim 1, wherein: the push head (42) is composed of a rectangular structure (421) and a hemispherical structure (422) arranged at the front end of the upper surface of the rectangular structure (421), and an arc-shaped groove (4221) is formed in the front end of the hemispherical structure (422);
the rectangular structure (421) and the hemispherical structure (422) are integrally formed.
4. An energy-saving preheater with a hydraulic pushing head device according to claim 3, wherein: the push head (42) is made of heat-resistant alloy cast steel.
5. The energy-saving preheater with the hydraulic pushing head device as claimed in claim 1, wherein: the included angle alpha between the bottom surface of the wedge-shaped cavity (2) and the horizontal plane is 10-12 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022817616.1U CN213865975U (en) | 2020-11-30 | 2020-11-30 | Energy-saving preheater with hydraulic pushing head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022817616.1U CN213865975U (en) | 2020-11-30 | 2020-11-30 | Energy-saving preheater with hydraulic pushing head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213865975U true CN213865975U (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022817616.1U Active CN213865975U (en) | 2020-11-30 | 2020-11-30 | Energy-saving preheater with hydraulic pushing head device |
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|---|---|
| CN (1) | CN213865975U (en) |
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- 2020-11-30 CN CN202022817616.1U patent/CN213865975U/en active Active
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