CN105964540B - The cleaning method and device of rotary screen - Google Patents

Abstract

The invention discloses a kind of cleaning methods of rotary screen, belong to the material screening field of coking industry, carry out the process of cleaning sieve nest to the mode that sieve nest taps with weight in sieve nest rotary course including rotary screen, it is characterised in that：The frequency that the weight taps sieve nest taps at least 2 times for sieve nest every revolution, the present invention to sieve nest tap using certain frequency completes cleaning process, percussion mode cleaning can reduce the abrasion of sieve nest and sieve cleaning mechanism, and control, which taps frequency, can make cleaning effect reach best.

Description

The cleaning method and device of rotary screen

Technical field

The present invention relates to the material screening field for coking industry, the cleaning method of especially a kind of rotary screen.

Background technology

During coke-oven plant is for detaching nut coke with coke powder, the sieve pore using rotary screen is 10mm or so, is run The middle moister easy blocking sieve pore of coke powder, conventional sieve cleaning mechanism are comb-tooth-type, and comb-tooth-type sieve cleaning mechanism continuously carries out sieve nest It cleans with water, sieve cleaning mechanism is made easily to damage, replaced after a period of time is run, otherwise just will cause cleaning effect not Good, sieve nest blocks, and influences to produce.

Invention content

The technical problem to be solved in the invention is to provide a kind of minimum cleaning simultaneously of abrasion to sieve nest and sieve cleaning mechanism The better cleaning method and device of effect.

In order to solve the above technical problems, the technical solution adopted in the present invention is：

The cleaning method of rotary screen carries out the mode that sieve nest taps with weight in sieve nest rotary course including rotary screen Clear up the process of sieve nest, it is characterised in that：The frequency that the weight taps sieve nest taps at least 2 times for sieve nest every revolution.

Technical solution of the present invention further improvement lies in that：The position that the weight taps sieve nest is apart from sieve nest apex circle Week is apart from the lower section lateral location for being 150 ~ 250mm.

Technical solution of the present invention further improvement lies in that：At least two baffles are axially set on sieve nest, the sieve nest Surface wire rope suspensioning weight, the traction radius of the steel wire rope is 1200 ~ 1800mm, and the weight taps the position of sieve nest It is set to apart from the lower section lateral location that sieve nest vertex circumferential distance is 150 ~ 250mm.

Technical solution of the present invention further improvement lies in that：The weight is equipped with multiple, and spaced apart is suspended on On stent right over sieve nest.

Technical solution of the present invention further improvement lies in that：The length that the multiple weight is suspended on stent is different, Suspension length changes in the range of 10 ~ 100mm.

Technical solution of the present invention further improvement lies in that：The multiple weight be suspended in spacing on stent for 200 ~ 650mm。

Technical solution of the present invention further improvement lies in that：The multiple weight is more than at the interval of middle section on stent The interval of both ends part.

By adopting the above-described technical solution, the technological progress that the present invention obtains is：

The present invention to sieve nest tap using certain frequency completes cleaning process, and sieve can be reduced by tapping mode cleaning The abrasion of body and sieve cleaning mechanism, control, which taps frequency, can make cleaning effect reach best.

The present invention uses the position of weight percussion sieve nest just to turn over the position on vertex for sieve nest, can more preferably ensure cleaning Effect；With the weight of the wire rope suspensioning certain mass of certain length right over sieve nest, make sieve nest band during rotation Dynamic weight completes the rebound to weight, and weight is made to carry out percussion work automatically；Multiple weights are set to it according to the length of sieve nest It is tapped, and the arrangement mode for setting weight different, ensures protection sieve nest and cleaning while cleaning effect to greatest extent The damage that mechanism, that is, weight receives is minimum.

Description of the drawings

Fig. 1 is main structure diagram of the present invention；

Fig. 2 is side structure schematic view of the present invention；

Wherein, 1, sieve nest, 2, weight, 3, steel wire rope, 4, stent, 5, baffle.

Specific embodiment

The present invention is described in further details with reference to embodiment：

The cleaning method of rotary screen, the mode tapped in 1 rotary course of sieve nest with weight 2 to sieve nest 1 including rotary screen The process of cleaning sieve nest 1 is carried out, the contact with sieve nest 1 of weight 2 is point contact during percussion, is tapped each time to 1 He of sieve nest The abrasion of weight 2 can be ignored, and can increase equipment life in this way；According to the rotating speed of sieve nest 1 and the severity of adhesive, if It puts weight 2 to tap at least 2 times the FREQUENCY CONTROL that sieve nest 1 taps for 1 every revolution of sieve nest, 1 every revolution of sieve nest taps 3 energy Adhesive on sieve nest 1 is enough made to go to behind top to be shaken from bottom and fall, ensure sieve nest 1 not material to be bonded blocking and can be normal Work；The control mode for controlling the percussion sieve nest 1 of weight 2 can be the automated manners such as electronic, pneumatic.

As shown in Figure 1 and Figure 2, it is generally 1.2 ~ 1.8m conventionally used for detaching 1 radius of sieve nest of coke powder, and rotary screen Rotating speed is 10 ~ 18 turns per minute, and setting weight 2 and 1 side point contact of sieve nest, contact point is below the vertex of sieve nest 1, and distance The vertex circumferential distance of sieve nest 1 is 150 ~ 250mm, when the adhesive carried in sieve nest 1 rotates to vertex, entrained bonding Object under self gravitation effect it is also possible to voluntarily come off, and after adhesive turns over 1 vertex of sieve nest, adhesive does not just take off voluntarily The possibility fallen, tapping sieve nest 1 with external force herein can make the most effective removing of weight 2 be sticked to the adhesive on sieve nest 1.

As shown in Figure 1 and Figure 2, the quality of weight 2 is 5 ~ 15kg and draws with steel wire rope 3, weight 2 radius for 1200 ~ Pendulum motion on the circumference of 1800mm, 1 peripheral, axial of sieve nest, which is uniformly arranged at least two baffles 5 and protrudes the distance of sieve nest 1, is Weight 2 is bounced 80 ~ 120mm by 25 ~ 35mm, the baffle 5 in rotary course of sieve nest 1, and the weight 2 bounced is in its own gravity and steel wire It is tapped after the displacement of 80 ~ 120mm is circumferentially moved under the collective effect of the centripetal force of rope 3 onto sieve nest 1；So cycle is just real Quantity of the number equal to baffle 5 that weight 2 taps sieve nest 1 in 1 every revolution of sieve nest, steel wire during weight 2 is swung are showed Rope 3 and the angle of vertical line are reduced to 10 ~ 20 ° by 25 ~ 35 °, under the control of 2 mass of weight, ensure weight 2 to sieve nest 1 Percussion dynamics.

As shown in Figure 1 and Figure 2, weight 2 is equipped with multiple, and it is spaced apart be suspended on 1000 right over sieve nest 1 ~ On the stent 4 of 1600mm, multiple weights 2 ensure that 1 everywhere of sieve nest is all cleaned.

As shown in Figure 1 and Figure 2, the length that multiple weights 2 are suspended on stent 4 is different, and suspension length is 10 ~ 200mm's In the range of change, the time that different suspension length makes the multiple weights 2 in operation process of sieve nest 1 tap sieve nests 1 is different, weight 2 can one by one it is continuous tap onto sieve nest 1, make in sieve nest 1 is at is cleaned all the time, to increase cleaning effect Fruit, while avoid weight 2 while tap the power that can cause excessive shock to sieve nest 1, avoid damage sieve nest 1.

As shown in Figure 1 and Figure 2, the spacing that the multiple weight 2 is suspended on stent 4 is 200 ~ 650mm, and multiple weights 2 are protected 1 everywhere of card sieve nest is all cleaned；The spacing of weight 2 is the most effective model tapped to sieve nest 1 in the range of 200 ~ 650mm It encloses, more than 650mm spacing, then the percussion dynamics between two weights 2 is insufficient, then leads to two weights 2 less than 200mm spacing Enough height closely cannot be repelled very much, also resulting in makes the dynamics of percussion sieve nest 1 insufficient, and setting weight 2 taps sieve nest 1 Optimal spacing is 400mm, can be ensured in this way to 1 most effective percussion of sieve nest.

As shown in Figure 1 and Figure 2, the weight 2 be suspended on spacing on stent 4 each 1/4 position in 4 both sides of stent for 200 ~ 400mm, the spacing that the weight 2 is suspended on stent 4 are 400 ~ 650mm in 4 centre position of stent；Multiple weights 2 are suspended in Interval on stent 4 is different, and the interval of middle section is more than the interval of both ends part on stent 4, due to 1 middle section of sieve nest Elasticity be more than both ends part elasticity, tap 1 middle section of sieve nest weight 2 acquisition potential energy be more than both ends part weight Object 2 taps the dynamics of 1 middle section of sieve nest just relative to the larger of both ends part, so setting 1 middle part of sieve nest each time The weight 2 divided is less than the weight 2 of 1 both ends part of sieve nest, makes the percussion dynamics that sieve nest 1 obtains uniform, avoids the transition to sieve nest 1 It taps, cleaning work is completed while the protection sieve nest 1 of maximum possible.

Claims (1)

1. the screen cleaning device of rotary screen, it is characterised in that：Sieve nest（1）Upper axial setting at least two baffles（5）, the sieve nest （1）Surface steel wire rope（3）Suspension heavy weight（2）, the steel wire rope（3）Traction radius for 1200 ~ 1800mm, it is described heavy Object（2）Tap sieve nest（1）Position be apart from sieve nest（1）Vertex circumferential distance is the lower section lateral location of 150 ~ 250mm；It is described Weight（2）Equipped with multiple, and spaced apart it is suspended on sieve nest（1）The stent of surface（4）On；The multiple weight（2） It is suspended on stent（4）On length it is different, suspension length changes in the range of 10 ~ 100mm；The multiple weight（2）It is outstanding It is hung in stent（4）On spacing be 200 ~ 650mm；The multiple weight（2）In stent（4）The interval of upper middle section is more than two Hold the interval of part, the weight（2）It is suspended on stent（4）On spacing in stent（4）Each 1/4 position in both sides for 200 ~ 400mm, the weight（2）It is suspended on stent（4）On spacing in stent（4）Centre position is 400 ~ 650mm；Rotary screen it is clear Screen method, including rotary screen in sieve nest（1）Weight is used in rotary course（2）To sieve nest（1）The mode of percussion carries out cleaning sieve nest （1）Process, the weight（2）Tap sieve nest（1）Frequency be sieve nest（1）Every revolution taps at least 2 times.