阅读说明：本技术 一种用于压滤机的高效节能柱塞泵及其工作方法 (Efficient energy-saving plunger pump for filter press and working method thereof ) 是由 何清鑫 于 2020-05-07 设计创作，主要内容包括：本发明专利公开一种用于压滤机进料的高效节能柱塞泵,包括机架、柱塞泵体和高压油泵,所述柱塞泵和高压油泵安装在机架上,所述柱塞泵安装所述机架的左侧,所述高压油泵安装在所述机架的右侧,所述高压油泵与柱塞泵通过软管道相连,所述连接软管道设有单向阀,所述高压油泵箱体上设有压力表。在压滤机的进料先采用两台高压油泵驱动柱塞往复工作输送进料,利用高压油泵的大流量驱动进行快速填料,又可以利用单油泵工作高压慢速进料,压力逐步上升的优点进行后期的压滤,通过这种组合来实现进料效率的提高,结构简单,能够有效的降低进料能耗,缩短进料时间、符合压滤机进料流程的需求。(The invention discloses an efficient energy-saving plunger pump for feeding of a filter press, which comprises a frame, a plunger pump body and a high-pressure oil pump, wherein the plunger pump and the high-pressure oil pump are arranged on the frame, the plunger pump is arranged on the left side of the frame, the high-pressure oil pump is arranged on the right side of the frame, the high-pressure oil pump is connected with the plunger pump through a hose line, the hose line is provided with a one-way valve, and the box body of the high-pressure oil pump is provided with a pressure gauge. Adopt two high-pressure oil pump drive plunger reciprocating work earlier at the feeding of pressure filter to carry the feeding, utilize the large-traffic drive of high-pressure oil pump to carry out quick filler, can utilize single oil pump work high pressure feeding at a slow speed again, the filter-pressing in later stage is carried out to the advantage that pressure rises step by step, realize the improvement of feeding efficiency through this kind of combination, simple structure, can effectual reduction feeding energy consumption, shorten the charge-in time, accord with the demand of pressure filter feeding flow.)

1. The utility model provides an energy-efficient plunger pump for pressure filter, includes frame, plunger pump and high-pressure oil pump, its characterized in that: plunger pump and high-pressure oil pump are installed in the frame, high-pressure oil pump includes high-pressure oil pump case, high-pressure oil pump, driving motor and check valve, high-pressure oil pump case top surface is fixed with driving motor, high-pressure oil tank one side is equipped with the pneumatic cylinder, the pneumatic cylinder passes through pipe connection the check valve, driving motor passes through the check valve and connects high-pressure oil pump, the high-pressure oil pump incasement is equipped with the oil pump filter, the check valve passes through pipe connection high-pressure oil pump, the plunger pump installation the left side of frame, the high-pressure oil pump is installed the right side of frame, the high-pressure oil pump passes through the hose way with the plunger pump and links to each other, be equipped with the manometer.

2. The high-efficiency energy-saving plunger pump for filter press feeding of claim 1, characterized in that: the number of the driving high-pressure oil pumps arranged on the plunger pump is two.

3. An energy-efficient plunger pump for filter press according to claim 1 or 2, characterized in that: the two high-pressure oil pumps have the same power or a large power and a small power.

4. An energy efficient plunger pump for filter press according to claim 1, characterized by that: the flow of the plunger pump adopts a low-pressure large-flow double oil pump and a high-pressure small-flow single oil pump to work.

5. A working method of an efficient energy-saving plunger pump for a filter press is characterized by comprising the following steps:

a. by using the high-efficiency energy-saving plunger pump structure of the filter press as claimed in claim 1, starting the two high-pressure oil pumps with the same power or a combination of high power and low power, and driving a double-cylinder plunger piston to extract materials to be quickly fed into the filter press through the high-pressure oil pumps;

b. the method comprises the following steps of pumping materials into a filter press, driving a double-cylinder plunger pump to feed materials rapidly and in a large flow rate by two high-pressure oil pumps, and when the total saturated pressure value of a filter chamber of the filter press reaches 0.5-1.0 Mpa, automatically disconnecting one high-pressure oil pump to stop working, and only keeping one high-pressure oil pump to feed materials slowly and in a high pressure at a low flow rate until the feeding is finished.

Technical Field

The invention relates to the field of filter presses, in particular to a high-efficiency energy-saving plunger pump for a filter press and a working method thereof.

Background

At present, a pump of a filter press is selected according to the running condition of the filter press, the pressure of the filter press is gradually increased from nothing to nothing in a feeding period, the pressure of the feeding pump is required to be correspondingly increased, the pump is started to carry out large-flow conveying, a filter chamber of the filter press is filled with materials during filter pressing, the pressure is further increased, the pump flow is further reduced, and at the moment, the pump provides high feeding pressure to extrude the materials to remove moisture.

At present, a centrifugal pump or a slurry pump and a single oil pump hydraulic plunger pump are adopted in a filter press to serve as a feeding pump of the filter press, but the centrifugal pump is large in energy consumption, large in flow and high in lift, but when the filter press is saturated to generate resistance pressure, automatic variable and variable speed cannot be achieved, power consumption loss is caused, filter pressing time is long, abrasion to equipment is large, loss of equipment parts is caused, replacement frequency is high, and production efficiency is also influenced.

Disclosure of Invention

In order to realize the purpose, the following technical scheme is provided:

the utility model provides an energy-efficient plunger pump for pressure filter, includes frame, plunger pump and high-pressure oil pump, its characterized in that: plunger pump and high-pressure oil pump are installed in the frame, high-pressure oil pump includes high-pressure oil pump case, high-pressure oil pump, driving motor and check valve, high-pressure oil pump case top surface is fixed with driving motor, high-pressure oil tank one side is equipped with the pneumatic cylinder, the pneumatic cylinder passes through pipe connection the check valve, driving motor passes through the check valve and connects high-pressure oil pump, the high-pressure oil pump incasement is equipped with the oil pump filter, the check valve passes through pipe connection high-pressure oil pump, the plunger pump installation the left side of frame, the high-pressure oil pump is installed the right side of frame, the high-pressure oil pump passes through the hose way with the plunger pump and links to each other, be equipped with the manometer.

Preferably, the number of the driving high-pressure oil pumps arranged on the plunger pump is two.

Preferably, the flow of the plunger pump adopts a low-pressure large-flow double oil pump and a high-pressure small-flow single oil pump to work.

A working method of an efficient energy-saving plunger pump for a filter press is characterized by comprising the following steps:

a. by using the high-efficiency energy-saving plunger pump structure of the filter press as claimed in claim 1, starting the two high-pressure oil pumps with the same power or a combination of high power and low power, and driving a double-cylinder plunger piston to extract materials to be quickly fed into the filter press through the high-pressure oil pumps;

b. the method comprises the following steps of pumping materials into a filter press, driving a double-cylinder plunger pump to feed materials rapidly and in a large flow rate by two high-pressure oil pumps, and when the total saturated pressure value of a filter chamber of the filter press reaches 0.5-1.0 Mpa, automatically disconnecting one high-pressure oil pump to stop working, and only keeping one high-pressure oil pump to feed materials slowly and in a high pressure at a low flow rate until the feeding is finished.

The invention has the beneficial effects that: compared with the prior art, through adopting two high-pressure oil pump drive double-cylinder plunger pump quick large-traffic feeding to fill thick liquids in earlier stage fast, the filter-pressing in later stage is carried out to the advantage that later stage high pressure low discharge, pressure gradually rises, realizes the improvement of feeding efficiency through this kind of combination, and simple structure can effectual reduction feeding energy consumption, shortens the charge-in time.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a high-pressure oil pump disclosed by the invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.