CN201052475Y

CN201052475Y - Coal bunker level automatic control peristalsis breaking preventing device

Info

Publication number: CN201052475Y
Application number: CN 200720090570
Authority: CN
Inventors: 王立河
Original assignee: YONGCHENG COAL ELECTRICITY GROUP CO Ltd
Current assignee: YONGCHENG COAL ELECTRICITY GROUP CO Ltd
Priority date: 2007-06-05
Filing date: 2007-06-05
Publication date: 2008-04-30
Anticipated expiration: 2017-06-05

Abstract

The utility model relates to a coal level auto-control crawl anti-breaking device, which mainly comprises a fixing plate, an adjusting plate, a connecting board, a movable lever, a limit switch, a support shaft and a spill plate cowl, wherein the adjusting plate is vertically fixed on the fixing plate, the connecting board is fixed on the adjusting plate through a bolt, the movable lever is mounted on the connecting board through the support shaft and can rotate by taking the support shaft as a supporting point, the lower end of the movable lever is connected with the spill plate cowl, the upper end tumbler contacts with the limit switch, the limit switch is mounted on the connecting board, and the fixing plate is mounted on the side wall of the lump coal trough inlet entry. The contact or non-contact between the lump coal and the spill plate cowl can bring subsequent series of mechanic movements, which can decide the closure of the limit switch, the forward and counter operation of a motor is controlled by an electrical control circuit, which can drive the slow start and closure of the trough gate, again and again, the coal lever up-down rises and falls within a narrow range on the controlled position, thereby avoiding the shock and fall caused by big drop height of the lump coal, and being capable of effectively realizing anti-breaking effect of lump coals.

Description

A kind of coal position automatic control wriggling anti-crushing device

One, technical field

The utility model relates to the device of the lump coal anti-crushing of a kind of coal preparation plant use.

Two, background technology

The anthracite block coal resource is the quality raw materials of Coal Chemical Industry gas making and fertilizer industry, and very rare in China, and still, anthracite block coal is broken into pieces easily because intensity is low in the dressing of coal by washing process.The more anti-crushing device of the anthracitic coal preparation plant of washing The field is the ultrasonic wave anti-crushing at present, promptly utilizes the probe ultrasonic wave to measure the thing bit data, the analog quantity conversion, and cpu logic is controlled the automatic control that realizes the coal position.But, this anti-crushing device circuit complexity, instability, and also ultrasonic listening has blind area and error etc.; In addition, in coal preparation plant's The field, because environment is abominable, this device exists fault rate higher, cause automatic control malfunctioning, cause chute chute blockage or emptying phenomenon, main element damages also has producer's contact to buy integral replacing, not only cost is big, simultaneously also barrier or spare part deliver goods are untimely for some reason, to such an extent as to influence is produced continuously, and cause certain loss for enterprise.

Three, summary of the invention

The technical problems to be solved in the utility model is: design a kind of new moulded coal position automatic control wriggling anti-crushing device, realize the Detection ﹠ Controling of coal position, reach the purpose that prevents lump coal breaking.

Implementation procedure of the present utility model is such: it mainly comprises fixed head, adjustable plate, connecting plate, active lever, limit switch, back shaft, spillplate, and adjustable plate is vertically fixed on the fixed head, and connecting plate is by being bolted on the adjustable plate; Active lever is installed on the connecting plate through back shaft, and can back shaft be that fulcrum rotates; The active lever lower end connects spillplate, and the upper end contacts with the limit switch pivoted arm, and limit switch is installed on the connecting plate; Fixed head is installed on the sidewall of lump coal chute inlet.

In order to regulate the position, the left and right sides of spillplate, on connecting plate, be provided with adjustment hole, loose bolts can be moved the position, the left and right sides that connecting plate is regulated spillplate left to the right; On the spillplate of active lever lower end, also be provided with adjustment hole, become flexible the bolt on the active lever, can regulate the upper-lower position of spillplate.

Control section of the present utility model is very simple, and the colleague technical staff all can design, and does not do detailed description at this.

Good effect of the present utility model is: simple in structure, easy for installation, mechanical action, control is reliable, gate is according to the action of coal position open and close repeatedly, be engraved near the highest control level when having guaranteed the coal position and highest level between fluctuate, make lump coal reprint drop and remain on reasonably low-levelly, can prevent effectively that lump coal from breaking into pieces.

Four, description of drawings

Accompanying drawing 1 is a structural representation of the present utility model.

Five, the specific embodiment

As shown in Figure 1: adjustable plate 2 is vertically welded on the fixed head 1, fixed head 1 is installed on the lump coal chute feeding mouth sidewall, and connecting plate 4 is provided with adjustment hole, unclamps bolt 11, regulate connecting plate 4 and determine the position, the left and right sides of spillplate 7, with string quantity clamping plate 3 connecting plate 4 is fixed on the adjustable plate 2 then; Be fixed with a back shaft 8 in connecting plate 4 lower ends, active lever 6 is connected on the connecting plate 4 through back shaft 8, and can back shaft 8 for fulcrum rotates, be the left and right displacement of restriction active lever 6, on back shaft 8, active lever 6 both sides respectively establish a limited block 10; Active lever 6 lower ends are connected with spillplate 7 through bolt 12, and the upper end contacts with limit switch pivoted arm 9, and limit switch 5 is installed on the connecting plate 4.On spillplate 7, be provided with adjustment hole, can pass through bolt 12, regulate the upper-lower position of spillplate 7.

The course of work of the present utility model is: coal enters chute from the side of spillplate, when the coal position reaches the control height, spillplate 7 in the coal hookup drives active lever 6 simultaneously and rotates along bolster 8, and promote 9 rotations of limit switch pivoted arm, and limit switch 5 is connected, and control circuit control motor just changes, gate is opened, simultaneously, gate is opened indicator lamp and is lighted, and the coal position begins to descend.Along with the coal position constantly descends, coal cinder leaves spillplate 7, rely on the deadweight of spillplate 7, spillplate 7 drives active lever 6 and resets along bolster 8 rotations, drives limit switch pivoted arm 9 simultaneously and resets, limit switch 5 disconnects, the counter-rotating of control circuit control motor, closing gate, the coal position stops to descend, simultaneously, gate closes indicator lamp and lights.So repeatedly, realized that the coal position rises and falls up and down by a small margin in the control position, avoided the impact of the big drop of lump coal and drop, can effectively play the effect of lump coal anti-crushing.

Claims

1. coal position automatic control wriggling anti-crushing device, it is characterized in that: it mainly comprises fixed head (1), adjustable plate (2), connecting plate (4), active lever (6), limit switch (5), back shaft (8), spillplate (7), adjustable plate (2) is vertically fixed on the fixed head (2), and connecting plate (4) is fixed on the adjustable plate (2) by bolt (11); Active lever (6) is fixed on the connecting plate (4) through back shaft (8), and can rotate for fulcrum by back shaft (8); Active lever (6) lower end connects spillplate (7), and the upper end contacts with limit switch pivoted arm (9), and limit switch (5) is installed on the connecting plate (4); Fixed head (1) is installed on the sidewall of lump coal chute inlet.

2. coal according to claim 1 position automatic control wriggling anti-crushing device, it is characterized in that: be provided with adjustment hole on connecting plate (4), loose bolts (11) can be moved the position, the left and right sides that connecting plate (4) is regulated spillplate (7) left to the right; On the spillplate (7) of active lever (6) lower end, also be provided with adjustment hole, become flexible the bolt (12) on the active lever (6), can regulate the upper-lower position of spillplate (7).