Softness and salt removal experimental device

The ion exchange softening method is widely used in the processing engineering. The use of strong acid cations exchange resin is also common. As a water treatment engineering technical personnel, the measurement method of this resin exchange capacity (that is, the full exchange capacity) should be mastered and the operation and operation of the soft water device should be understood.

Through this experiment, I hope to achieve the following goals:

1. Familiar with Shunliu regeneration fixed bed operation process;

2. Deepen the understanding of the basic theory of sodium ion exchange.

2. Experimental principle:

When water cont--ning calcium salt and magnesium salt switches the resin with cations with cations, the CA2+and MG2+ions in the water exchange with the exchanging ions (NA+or H+) in the resin to reduce the CA2+, MG2+content in the water or basically. All are removed, and this process is called water softening. After the resin f--ls, the resin must be regenerated, that is, the calcium and magnesium ions adsorbed on the resin are replaced, and it is replaced with a new exchanging ion. Sodium ion exchanges resin regeneration for salt (NACI), hydrogen ion -type exchange resin hydrochloric acid (HCI) or sulfuric acid (H2SO4). The basic reaction type is as follows:

3. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 35L ~ 56L/H

3. Softening exchanges m100mm × 1500mm,

4. Device shape size: 1100mm × 500mm × 2000mm,

5. Work power: AC220V ± 10%, 50Hz, single -phase three -line system, 300W power, safety protection: ground protection, leakage protection, overcurrent protection

I. Overview:

The tolerance and teaching display cabinet is an important technical requirement on the design of mechanical parts design. It is an important part of the static and dynamic geometric accuracy of mechanical products. With the development of science and technology and the improvement of production level, the geometric accuracy of mechanical products has also made increasing requirements. The geometric accuracy has formed an independent technical discipline, and it is subject to the academic and engineering and technical circles. The people attach great importance to it.

2. Technical specifications:

1. This display cabinet is composed of a total of six single display cabinets. The shape size of the display cabinet body: 1200 × 400 × 1900mm (long × width × height).

2. The cabinet is welded (or aluminum -wood structure) with SPCC cold tie plate. The surface is made of medium temperature phosphorus, and the cabinet rigidity is good. The display panel in the cabinet is a super luxurious aluminum -plastic mezzanine, which has good carrying. There are necessary charts and text descriptions on the plate surface. The appearance is beautiful and generous.

3. There is a p--r of doors on the back of the cabinet to facilitate m--ntenance equipment and convenient m--ntenance.

4. There is a cabinet box in the lower part of the cabinet to facilitate stored models, experimental boxes and related experimental documents.

5. The bottom of the cabinet is equipped with a universal wheel, which is convenient to move, and meets the requirements of human -machine engineering.

6. Model material is made of physical, acrylic organic board and engineering plastic.

7. Virtual simulation teaching system

Machinery tr--ning security education virtual simulation software: This software is developed based on UNITY3D. The software is in the form of three -dimensional roaming. It can be moved by keyboard control. The direction of the mouse control lens is equipped with mechanical safety distance experiments, mechanical safety protection device experiments, mechanical safety protection design Basic assessment and experiments, the three -dimensional roaming screen uses arrows and footprint patterns to move to the experimental location. The circle around the mechanical object shows a working radius, and the experimental process is accompanied by a three -dimensional robot dialog box reminder.